手工缝制的皮革边缘非常漂亮。

The hand-stitched leather ___edges are beautiful.

孩子们被警告不要靠近池塘的边缘。

The kids were warned not to go near the ___edges of the pond.

她的语言技能使她在面试中脱颖而出。

Her language skills gave her the ___edge in the interview.

他的回答带着尖锐的锋芒。

There was a sharp ___edge to his reply.

这项研究正处于重大发现的前夕。

The research is on the ___edges of a major discovery.