- 释义：
- n. 问题；习题，困难
- 例句：
-
His mind reached after an understanding of the problem.
他开动脑筋,想弄懂这个问题.
换一句
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The safe disposal of nuclear waste is a major problem.
安全处置核废料是个大问题.
换一句
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Let's hold over discussion of this problem until our next meeting.
让我们下次会议再讨论这个问题.
换一句