They will either have a straight or slightly curved edge.
他们的刀锋要么是直的要么是有点弯曲。
The cutting tool may have a single cutting edge or may have many cutting edges.
刀具可能只有一个刀刃或者可能有多个刀刃。
Well, this morning I must have slipped or something, because I fell over the edge.
今天一早，也不知怎么的，我踩滑了、掉下了楼。
Well, this morning I must have slipped or something, because I fell over the edge.
今天一早，也不知怎么的，我踩滑了、掉下了楼。
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