animals compete or perform 比赛；表演：horse trials

马匹比赛

► DIFFICULT EXPERIENCE 艰难浮历 5 [C]〜（to sb) an experi­ence or a person that causes difficulties for sb 令人伤脑 筋的事；惹麻烦的人；考验：the triak and fritmiatiom; 〇/married h/e婚姻生活的考验与磨炼◊ She was a sore triaZ to her/ami〖y at times.—有0^让家人伤透了脑筋。

.trial and 'error the process of solving a problem by trying various methods until you find a method that is successful 反复试验；不断摸索：Children 〖earn to use computer programs by trial and error.

索才学会运用计算机程序：

■ verb (-II-) [VN, V] (SrE) to test the ability, quality or performance of sth to see if it will be effective or successful测试（能力、质量、性能等）；试验；试用 'trial baSloon noun something that you say or do to find out what people think about a course of action before you take it泣探性言论（或行动）

.trial 'run (also .test 'run) noun a test of how well sth new works, so that you can see if any changes are necessary (对新事物的）初步试验，试行

triangles三角形

isosceles triangle

等腰三角形

right-angled triangle [BrE] right triangle [NAmE]

直角三角形

tri-angle 0■« /'traiaerigl/ noun 1 a flat shape with three straight sides and three angles; a thing in the shape of a triangle 三角形；三角 形物妹：（价£) a right-angled friangZe 直角三 _ 形◊ (MA/r?£) a right triangZe 裒角三角形◊ Cut the sandwiches into trfang?es•把二.明治切J^；三角形。2 a simple musical instrument that consists of a long piece of metal bent into the shape of a triangle, that you hit with another piece of metal 三角铁（打击乐器）一picture o page R8 3 a situation involving three peopie in a compli­cated relationship 三角 关系： a〖ove tricmgZe三角恋爱 —see also eternal triangle 4 {NAm£) = set square tri-angu-Iar /trai'aer)gjal8(r)/ adj. 1 shaped like a triangle 三角系)；三禹私的 2 involving three people or groups涉及三又的；三组的；三方面的：a trianguZar contest in an election竞选中三位候选人的角逐 tri-angu-la-tion /trai.aerjgju'leij'n/ noun [U] [technical 语）a method of finding out distance and position, usually on a map, by measuring the distance between two fixed points and then measuring the angle from each of these to the third point (通常在地图上做的J 三角测量，三角定位

tri.angu lation point noun = trig point tri-afh-Ion /trai'aB01an/ noun a sporting event in which people compete in three different sports, usually swim- ming, cycling and running三项全金运劫；铁人三项赛 —compare biathlon, decathlon, heptathlon,

PENTATHLON, TETRATHLON

tri-ba! /'traibl/ noun, adj.

m adj. [usually before noun] connected with a tribe or tribes 部落的；部族的：tribdart部落艺术◊tribanectders部

落首领

| 2157             triceratops

■ nown a member of a tribe, especially in S Asia (尤指南

亚的）部落成员

tri.bal.ism /'traibalizam/ noun [U] 1 behaviour, atti­tudes, etc. that are based on being loyal to a tribe or other social group部落习性；种族意识；部落主义2 the state of being organized in a tribe or tribes 部落制度 tribe /traib/ noun 1 (sometimes offensive) (in developing countries) a group of people of the same race, and with the same customs, language, religion, etc., living in a particular area and often led by a chief 部落：tribes living in remote areas of the Amazonian rainforest ^ ft 在亚马孙河雨林偏远地区的部落2 (usually        a

group or class of people, especially of one profession (尤指同一职业的）一伙（人），一帮（人），一类 (A ) •• He had a sudden outburst against the whole tribe 〇/actors•他突然对所有的演员非常反感。3 (b/o/Qgy 生）a group of related animals or plants (动物或植物 的}群，族：a tribe of cats 猫族 4 [informal or humorous) a large number of people 大_，大帮，大批（人 > : One or two of the grandchildren will be there, but not the tribe. —两个孙子孙女备去那里，但并不是所有

的人。

tribesman /'traibzman/, tribeswoman /'traibz- wuman/ noun {pi. -men /-man/, -women /-wrnim/) a member of a tribe 部落成貞

tribes-people /'traibzpirpl/ noun [pi.] the people who belong to a particular tribe 部落成员 tribu la tion /.tribju'leijn/ noun *[C, U] {literary or /jwmoratvs) great trouble or suffering 忧患；苦难；磨 难；痛苦：Ae tribuiations 〇/ modern丨i/e现代生活的 苦恼

tri-bu-nal /trai'bjuinl/ noun [C+sing./pl. v.] a type of court with the authority to deal with a particular problem or disagreement 特别法庭；裁判所：She took her case to a 她把龛件提交特知|涣E审理。◊ a (fcdpHnary tribunal        — see also industrial tribunal

trib-une /'tribjuin/ noun 1 an official elected by the people in ancient Rome to defend their rights; a popular leader (古萝马由平民选出的）保民官；受拥戴 的领袖 2 a raised area that sb stands on to make a speech in public (公_演讲的）讲坛 tribu-tary /'tribjatri; NAmE -teri/ noun (pi. -ies) a river or stream tliat flows into,a larger river or a lake (流入大 河或湖泊的）支流►tribu.tary £7办[only before noun]: a tributary stream

trib.ute /.tribju:t/ now/? 1 [U, C]〜（to sb) an act, a state- ment or a gift that is intended to show your respect or admiration, especially for a dead person，（，允.指对•死者 的）致敬，颂悼念；致哀；吊唁礼物：Ather_AmeraZ her oZdest _/Wend paid tribute to her h/e and wor/c.-在葬 礼上，她最早的朋友对她的一生和工作给予了高度的赞 扬。◊ This book is a fitting tribute to the bravery of the pioneers.本书是对先驱们大无畏精神恰如其分的献礼。◊ 方omZ tributes (= gifts .of flowers at a funeral)葬彳L 献花 2 [sing.]〜to sth/sb showing the good effects or influ- enceofsth/sb (良好效果或影响的）体现，姐示：Ms recovery is a tribute to the doctors’sfciH.他的康复充分显 示了各位医生高超的医术。3 [U, C] (especially in the past) money given by one country or ruler to another, especially in return for protection or for not being ^tacked (尤指旧时一国向他国交纳的）贡品贡金 'tribute band noun a group of musicians who play the music of a famous pop band and copy the way they look and sound模仿乐队

trice /trais/ noun UTI^I in a 'trice very quickly or suddenly转眼之间；弹指一挥间；瞬息间SEI in an instant ： He was gone in a trice.转眼之间他就没影

彳L 了。

tri-ceps /'traiseps/ noun [pi tri-ceps) the large muscle at the back of the top part of the arm 三头肌一compare BICEPS

tri-cera-tops /trai'seratops; NAmE -ta:ps/ noun [pi. tri- cera-tops or tri-cera-topses) a large dinosaur with two large horns and one small horn on its very large head

三角（恐）龙