翻译练习。
1 ．我们决不能忽视污染严重的这个事实.(lose sight of)
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2 ．洪水横扫了座落于山脚下的五个村庄,造成很大的经济损失.(sweep up)
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3 ．每当周末时,他总是协助老师做实验.(assist)
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4 ．我们的家乡座落在群山环绕的峡谷中.(surround)
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5 ．当问起什么时候从医时,那位男子保持沉默.(take up)
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1. We should never lose sight of the fact that serious pollution lies.
2. The flood swept up the five villages lying at the foot of the mountain,causing a great economic loss.
3. He assists his teacher in doing the experiment at the week- ends.
4. Our hometown lies in a valley surrounded by mountains.
5. Asked when he took up medicine,the man kept silent.