ascertain

CET-6 大学 FREQ #21404 ★☆☆☆☆

vt. 确定, 查明 [法] 查明, 弄清, 确定

发音

UK /ˌæsəˈteɪn/
其它
CA /ˌæsɚˈteɪn/
US /ˌæsɚˈteɪn/
AU /ˌæsəˈtæɪn/
NZ /ˌæsəˈtæɪn/

词形变化

ascertained ascertainest ascertaineth ascertaining ascertains 三单 ascertains ascertaining 现在分词 ascertained 过去式 ascertained 过去分词

教材释义与例句

动词

确定；查明；探知

释义与例句

v.
  1. 1.

    To find out definitely; to discover or establish.

    查明

    及物

    As soon as we ascertain what the situation is, we can plan how to proceed.

  2. 2.

    To make (someone) certain or confident about something; to inform.

    废旧 及物
  3. 3.

    To look for something lost.

    过时 不及物
  4. 4.

    To establish, to prove.

    古体 及物
  5. 5.

    To ensure or effect.

    古体 及物

词汇关系

动词

同义词 10

see find watch check control learn assure determine ensure insure

上位词 10

see hear show move learn act prove discover establish demonstrate

下位词 10

number control test count cover card price proof locate sequence

近义相关 10

see find watch check control learn mark assure discover determine

词源

From Middle English acerteynen, from Old French acertener, from a- (“to, towards”) + certener (“make sure of”), from the adjective certain, from Latin certus (“certain, fixed”). Compare to Spanish acertar.

来源：wiktionary