(每日一词)ascertain

(每日一词)ascertain /ˌæs.ɚˈteɪn/ v. 弄清,确定,查明

ascertain-n

1) 前缀:as- 表示ad- 朝向,强调作用

2) 词汇:certain 确信


双语例句:The police have so far been unable to ascertain the cause of the explosion. 警方到目前为止尚未查明爆炸的原因。



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