1、
Since you knew that she is my girlfriend, why did you ask the question?
你早就知道她是我女朋友了, 怎么还要明知故问 呢 ?
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2、
He bombarded Catherine with questions to which he should have known the answers.
他明知故问地不断质问凯瑟琳。
《柯林斯高阶英汉双解学习词典》
3、
