ascertain
UK [ˌæs.ə'teɪn] US [-ɚ-] formal
verb transitive
■to discover; to make certain 弄清，确定，查明•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原因。 •[+ that] I ascertained that no one could overhear us before I told Otto the news.确信没有人能听到我们的谈话之后，我才把这个消息告诉了奥托。 •[+ question word] Have you ascertained wh ether she's coming or not?你问清楚了吗，她来还是不来？ |