假定他还活着，现在有多大年纪了？ ◊
J hope to go to college
next year, always assuming I pass my exams. 我希望明年上大学，当然是在我通过考试的前提下。
as-sump-tion
/a'SAmpJn/
noun 1 [C]
a belief or feeling that sth is true or that sth will happen, although there is
no proof 假定；假设：an
undertying/imjpZfcft assumption 设想；含舍命假定◊ We need to chaHenge some of the basic assumptions of
Western philosophy. 们有必要向西方哲学的某些基本假设提出质疑。◊ We are working on the assumption that
everyone
invited will turn up.我们假定了每一个人都会应邀；i席并正就此作出
安排.〇 ◊ Jt was
imposdbie to mafce assumptions about people’s reactions•臆断人们的反应是不可能的。◊ His actions
were based o/i a /aise assumption.他的行.，为基:于 错误的设想。2 [C, U]〜of sth (/ormfl/)
the act; of taking or beginning to have power or responsibility .(责任 的）承担；担任；（权力的）获得：t/ieir assumption 〇/ power/controi他们的取得权另/控制
as-sur-ance
/a'Juarans;
-Joir-; NAmE a'Sur-/
noun
1 [C] a statement that sth wiil certainly be true or will certainly happen,
particularly when there has been doubt about it 無证；担保.HTTl
guarantee, promise： They called for assurances that the government is committed to its education poiicy.他们要求保证政府切实执彳^其教育方
辛十。〇 Unemployment seems to be rising,
despite repeated assurances to the contrary.尽會反复垣保M少美业，失
业率看来却在上升。2 (also
,self-assurance) [U] belief in your
own abilities or strengths 自信 HT1 confidence ：There was an air of easy assurance
and calm about
Mm.他表规出从容_信和冷静。3 [U] (8r£) a type of
insurance in which money is paid out when sb dies or after an agreed period of
time 人■寿掉险：a life assurance company A ^ ^ ^ —
see also quality
ASSURANCE
aS.SU re /咖咖);-Jx(r); /S/Awf Wjur/
1 ~ sb (of sth) to tell sb that sth is
definitely true or is definitely going to happen, especially when they have
doubts about it 使确信；向…保证：.[VNj (that丨]Fou
thinfc I did it
deliberately, but I assure you (that) I did not. i^\X 为这是我故意干的，不过我向你保证f是的。◊We were assured
that everything possiWe was being done•我们■确
德是在尽一切努力。◊ [VN] She’s sa/e, f can
assure you.義可以向你保证，她绝对妾全e ◊ We assi/red Wm
〇/ our
support•我们向他保埤给 f
i 持。◊ [VN speech]
come back,’ Susan assured her., “他会 自来ftl。” 苏珊安慰她道。2 ~ yourself (of sth) to make yourself
certain about sth 弄清；查明：[VN] ffe assured hi'msd/ 〇/her sa/ety.他确定她i安全命。◊ [VN that] She
assured
herself that the letter was still in the drawer. 她查清楚信仍然在抽屉里。3 to make sth certain
to happen 确保；使确:定 HTTl
guarantee- [VN] Victory wouZd assure a p丨ace fn the )iina/5.胜利将岫保能参加 决赛。◊ [VNN] Victory wouW assure
them a pZace in the 加ak•胜利将确保他们能参加决赛。4 [VN] (8r£) to insure sth, especially against sb，s death 保险（尤穡人 寿险）：What is the sum
assured?人寿保瞌“是多少？■ as.sured /a'Juad; a'Joid; NAmE a'Jurd/ adj. 1 (also ,self-as'sured) confident in yourself
and your abilities 、自信的；有把握的：He spofce in a caim,
assured vofce..他 ■冷命自信地说。2 certain to happen必将发生的；确定的
guaranteed ： Success seemed, assured.
无疑。■〇 note at certain 3 〜of sth (of a person 人） certain to get sth 肯定得到：You are assured of a warm wdcome at this hotd.妹#这家旅馆肯定会;罘到热情欢 迎。ITST^l see rest v.
as-sured-ly /a'Xusradli;
a'X〇;r-; NAmE a'Jur-/ adv. {formal) certainly; definitely 肯定；一定
AST
/,ei
es 'ti:/ abbr. Atlantic Standard Time as-ta-tine /'aestatiin/ noun [U] (symb At) a chemical element.
Astatine is a radioactive element
which is found in small amounts in nature, and is produced artificially for usg
in medicine.砍（&射性化学元素」
aster /'aesta(r)/ noun a garden plant that
has pink, purple, blue or white flowers with many long narrow PETALS紫菀（园艺植物）
as-ter-isk /'aestarisk/
noun the symbol ( *)
placed next to a particular word or phrase to make people notice it or to show
that more information is given in another