with the teachers and, by extension, with the Education Service.应受指责的是教师，再则就是教育机构。

extension agent noun (in the US) a person who works for a state university in a country area, and whose job is to give advice to farmers, do research into farming, etc•(美国州立大学乡村的）农业技术推广研 究员

extension lead (also extension) (both 6r£) [NAmE extension cord) noun an extra length of electric wire, used when the wire on an electrical device is not long enough接长线路,延长线(电器上的电线加长部分） ex tfen-sive 〇T» /ik'stensiv/ adj.

1                   covering a large area; great in amount 广阔的；广大 的；大量的：The house has extensive grounds.这栋房子 有宽敞的庭院。_ ◊ rhe_/iire caused extensive damage.火 灾造成了 巨大的损失。◊ She sujfered extensive injuries in the accident.她在事故中受了金伤。◊ Extensive repair worfc is being carried out.大规模的修缮工作正在进行。◊ an extensive range 〇/wines 各种各样的葡萄酒 2 includ­ing or dealing with a wide range of information 广泛 的；广博的 H771 far-reaching ： Extensive research has been _ done into this disease.对这种疾病已进行了广泛 研究。His knowledge 〇/music is extensive•他音乐知识 很广博。► ex.ten-sive.ly.£/t/v.: a spice used extensively fn Eastern cooWng东方烹饪广泛使用的香料◊ She has traveHed extensiveiy.她游历甚广。

ex-ten-sor /ik'stensa(r); NAmE -so:r; BrE also ek's-/ (also ex'tensor muscle) now/i {anatomy M) a muscle that allows you to make part of your body straight or stretched out 伸肌一compare flexor ex-tent tH» /ik'stent/ noun [sing., U]

1 how large, important，serious，etc. sth is 程度；限 度：It is difficult to assess the full extent of the damage. 损失情况难以全面估计。◊ She was exaggemting the true extent o/the proWem.她对这个问题育过其实。◊ / was amazed at the extent 〇/his fcnovviedge.他知识之渊博令 我惊奇。2 the physical size of an area 大小；■面积；舍 围：Ybu can’t see extent 〇/ the beach here.

从这儿看不到海滩全貌。IT*TO1 to ... extent used to show how far sth is true or how great an effect it has 到…程度；在…程度上：To a certain extent, we are aH responsiWe/or this tragic situation.我们都在一定程度上 对&悲惨的局面负有责任。◊ He had changeci to suc/i an extent (= so much) that I no longer recognized him. -fife 变得我M直认不出了。◊ r〇 some extent what she argues is true.她的论证在某种程度上是符合事实的。oTTie pollution of the forest has seriously affected plant life and, to a Zesser extent, wiWZi/e.森林污染严重影响了泽直 物的生存，其次也对野生动物造成了影响。〇r〇 what extent is this true o/aM schook?..这在多大程度上符合所 有学校的实际情况？ ◊ The book discusses the extent to which (= how much) family life has changed over the past 50 years.本书论述了近50年来家庭生活的变化 程度。

ex-tenu-at-ing /ik'stenjueitir)/ adj. [only before noun] {formal) showing reasons why a wrong or illegal act, or a bad situation, should be judged less seriously or excused情有可原的;.可减轻的：77iere were extenu­ating circumstances cmd the de/endant did not receive a prison sentence•因有可减轻罪行的情节被告未被判刑。

ex-ter-ior /ik'sti0ri8(r); NAmE -'stir-/ noun, adj.

m noun 1 [C] the outside of sth, especially a building ( X 指建筑―知）外部，外观，表面，外貌：rhe exterior 〇/ the house needs painting.房子外墙需要油漆。r«TiI3 interior 2 [sing.] the way that sb appears or behaves, especially when this is very different from their real feelings or character (人的）外貌，外表：Beneath his confident exterior, he was desperately nervous.

自信，内心极度紧张。

m adj. [usually before noun] on the outside of sth; done or happening outdoors 外面的；外部的；外表的：exterior waZis/sui/aces 外墙；.外层表面◊ TTie 用ming 〇/ the exterior scenes was done on the moors.夕卜景是在沼泽地 拍摄的。EH3 interior

ex1 terior angle /low/?    几何）an angle formed

between the side of a shape and the side next to it, when this side is made longer 夕卜角一picture o angle

707           extol

ex-teMnin-ate /ik'st3：mineit; NAmE -'st3：rm-/ verb [VN] to kill all the members of a group of people or animals 灭绝；根除；消灭；毁灭H771 wipe out ► exter min- ation /ik.staimi'neij'n; NAmE -,st3：rm-/ noun [U] ex-tern /'ekstain; NAmE -t3：m/ noun (L/S) a person who works in an institution but does not live there, espe­cially a doctor or other worker in a hospital 不住机构内 的公共机构工作人员；（尤指）非住院医生，非住院的医 院员工

ex-ter*nal /ik'st3：nl; NAmE ik'st3：rnl/ adj. 1 connected with or located on the outside of stii/sb 外部的；外面 的：the extema〖 wdZs 〇/ the budding•建筑物如夕f 墙 〇 The lotion is for external use only (= only for the skin and must not be swallowed)•此鉍液仅限外用。

2                   happening or coming from outside a place, an organ­ization, your particular situation, etc. 夕f 界的； 外来的； 在夕卜的：A combination of internal and external factors caused the company to ciose down.内外因结合导致了公 司的倒闭。◊ externa! pressures on the economy 外部因 素对经济的压力◊ Many external in_/Iuences can aj^ect your state ojpmind.许多外在因素都可能影响人的心侖。

3                   coming from or arranged by sb from outside a school, a university or an organization 来自.（学校'或 机构）以外的；>卜来的：（份£) externa丨examiners/ assessors 校外主考人 / 评定人◊ An extemaZ auditor wiH ver办t/ie accounts.外_审计员将核实这些账目。

4                   connected with foreign countries 与外国有关'的； 对外的：The government is committed to reducing the country’s extemai debt.政府决心减少本国的外债。◊ the Minister 〇/ State /or ExtemaZ AJ^airs 夕卜交大臣 PTJ3 internal ► ex-ter-naMy /ik'st3：n0li; NAmE -'st3：rn-/ adv. ： The building has been restored externally and internaHy.这栋建筑内外均已修复。◊ 77ie university has many externally funded research projects.

多外界资助的研究项目。

ex,ternal 'ear not/n (anatomy 解）the parts of the ear outside the eardrum + 卜耳

ex.ternal.ize {BrE also -ise) /ik'st3:nalaiz; NAmE -'st3：rn-/ verb [VN] (formal) to show what you are thinking and feeling by what you say or do (以言行:） 表达；使（思想、感情）表露出来一compare intern-

ALIZE

ex-ter-nals /ik'st3：nlz; NAmE -'st3：rn-/ noun [pi.] {formal) the outer appearance of sth 外表；外观；外貌 ex-tinct /ik'stmkt/ adj. 1 (of a type of plant, animal, etc. 某种植‘或动4等）no longer in existence未再存在的； 已灭绝的；绝种的：an extinct species已灭绝的物种◊ to become extinct 绝种 2 (of a type of person, job or way of life某种类型的人、工作或生活方i) no longer in exist­ence in society 绝迹的； 消亡了的； 废除了的： Servants are now almost extinct i/i modern society.在现代社会里 奴仆已近乎不复存在。3 (of a volcano火山）no longer active不再活跃的；死的EGEI active ex-tinc*tioh /ik'stnjkjn/ noun [U] a situation in which a plant, an animal, a way of life, etc. stops existing' (植 物、动物、生活方式等的）灭绝，绝种，消亡：a tribe threatened with extinction/in danger of extinction M 临消亡威胁/有消亡危险的部落◊ The moimtafn goriHa is on t/ie verge 〇/extinction.居住在山区的大猩猩已濒临 灭绝。

e^-tin-guish /ik'stirigwij'/ verb [VN] 1 to make a fire stop burning or a light stop shining 熄灭；扑灭 KTTl put out： •Ffre/ighters trie2 to extinguish the /lames.消防队 々奋力救火。◊ (/'owm/) AH Zig/its had been extinguished. 所有灯光都熄灭了。2 to destroy sth毁灭；消灾；使破 灭：News of the bombing extinguished all hope of peace. 轰炸的消息使和平的希望全部^^灭。 ex-tin-guish-er noun = fire extinguisher ex-tirp-ate /'ekstepeit; NAmE -tarp-/ verb [VN] [formal) to destroy or get rid of sth that is bad or not wanted 消 灭，根除，除掉（环的或不需要的事物）►ex-tirpa*tion /.eksta'peijn; NAmE -tar'p-/ noun [U] extol /ik'steul; AMmf ik'stool/ (-II-) [VN]〜sb/sth (as sth) (/omw/) to praise sb/sth very much 赞餐；颂扬；称 赞：Doctors q/fen extoZ t/ie virtues 〇/ eating Zess /at.医