knock at an open door是什么意思 knock at an open door怎么读
knock at an open door的英文翻译是什么意思，词典释义与在线翻译
knock at an open door的相关资料
knock at an open door的用法和样例
- During the orderly voting, the mission did indeed look like an extravagance.
在有秩序的投选过程中，非洲考察这项任务的确看起来是多此一举。
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