buiWing建筑用地极其巨大的成本◊ 77iefigures are astro- nomicaL 这些都是天文数字。► astro.nom.ic.al•丨y/-kli/ adv. ： Jhterest rates are
astronomicaHy high•利率极高 0 astro.nomical 'unit nown AU) (flsfra/?o/r7y
天）a unit of measurement
equal to 149.6 million kilometres, which is the distance from the centre
of the earth to the sun天文单位（即地球中心与太阳的距离，约合1.496 亿公里}
as-tron-omy /a'strDnami; NAmE a'stram-/ noun [U] the scientific study of the sun, moon, stars, planets, etc.
天文学
astr〇-phys-ics
/.asstrau'fiziks;
NAmE .aestroo-/ noun [U] the scientific study of the physical
and chemical struc- ture of the stars, planets, etc.天体物理学_ ►.astro.physi-
cist/-'fizisist/
noun
Astro-Turf™
/'aestr0ut3：f; NAmE 'aestrout3：rf/ noun [U] an artificial
surface that looks like grass, for playing sports
on阿斯特罗人造草皮
A
student noun
(especially NAmE] a
student who gets or is likely to get the highest marks/grades in his/her work
or exams学业成绩得A者；优％生
as-tute /a'stjuit; NAmE 0'stuit/ adj. very clever and quick at seeing what to do
in a particular situation, especially how to get an advantage 精明的；狡猾的
HT1 shrewd ： an astute businessman/politician/ observer精明的商人；狡猾的政客；敏锐观察家◊ Jt was cm astute move to seZ! the shares then•那时出售股 份是精明之举。► as.tute.ly flt/v. as.tute.ness /7〇w/7 [U] asun.der
/a_SAnd9(r)/ ocIk or /"era/y) into
pieces;
apart 碎；姓：families rent/tom asunder by the revolution这;^拿命所拆散的家庭
asy.lum /e'sailam/ noun 1 (also formal political a'sylum) [U] protection that a
government gives to people who have left their own country, usually because
they were in danger for political reasons (政 '治）庇护，—难：to see?c/appZy_/br/be
granted asylum 寻求/申请/義准'政治避难◊ There was a
natiomWde debate on
whether the asylum laws should be changed. 对是否应该修改政治避难法展开了一场全国性的大辩论。
2 [C] [old use) a hospital where people who were mentally
ill could be cared for, often for a long time 精神病院
a'sylum
.seeker noun a person who has been
forced to leave their own country because they are in danger and who arrives in
another country asking to be allowed to stay there寻求避难者；寻求庇护者
asym-met-ric
/.eisi'metrik/
(also asym-met-ric-al
/.eisi-
'metrikl/) adj. 1 having two sides or
parts that are not the same in size or shape 不.对称的：Most peopZe’s/aces are
as:y7nmetric.大多数人的脸不对称。Winsymmet- rical 2 (technical not equal, for example
in the way each side or part behaves 不々等的：Linguists are studying the asymmetric use
of Creole by parents and children (= parents use one language and children
reply in another).语言学家正在研究父母和孩子使用克里
奧尔混合语时的不对等现象（即父母使用-种语言而孩子
用考.一种谭言回答)y,，： ►asym.met.ric.a丨•丨y/-ikli/<7t/v. asym-met-ry /.ei'simatri/ noun [C, U] asym,metric 'bars (6r£) {NAmE un.even 'bars) noun [pi ] two bars on
posts of different heights that are used by women for doing gymnastic exercises on 高低杠 女子体操器械）
asymp.tom.at.ic
/.eisimpte.maetik/ 〇(力..医）（of a person or illness 人或疾病）having no symptoms 无症
状的
asyn-chron-ous /ei'sirikranas/ adj. {formal) (of two or more
objects or events两个或多个物体或事惰）not existing or happening, at the same
time 不同时存在（或 发生)的;非真时的►asyn.chron.oius.丨yfldv. at /et; strong form set/ prep.
1
used to say where sth/sb is or where sth happens 在，（某处 >，：at the comer 〇/ the street 在街角◊ We •changed af Crewe.我们在克鲁换的车。◊ They arn'ved fate af the
airport•他们晚到了 机场。◊ At t/ie round- about
take the third exit.在环岛第三个出■口。0J7Z be'.at home aH morning•我一上，午.都在家。◊ She’s af Tom’s
(=’at Tom’s house).—在汤&家屮。.◊ J met