题目内容
翻译句子
The origins of some words are unknown．
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某些词的起源不详。
用所给关键词翻译句子
一些人在担心网络商店会取代真正的商店。(take the place o)f
1. It was very sharp of you to see that. 2. Emma has a sharp tongue. 3. The photograph is not very sharp. 4. Accidents often happen where there are sharp bends. 5. Please be here at seven o'clock sharp. 6. Sharks have sharp teeth.
