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我们只得叫个管子工来疏通下水道。
We had to call in a plumber to unblock the drain.
《牛津词典》
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那样做不会冲走全部的污水，但应该能疏通一下发臭的下水道。
That won't flush out all the sewage, but it should unclog some stinking drains.
《柯林斯英汉双解大词典》
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那样做不会冲走全部的污水，但应该能疏通一下发臭的下水道。
That won't flush out all the sewage, but it should unclog some stinking drains.
《柯林斯英汉双解大词典》