Beware her waspish wit.

当心她的机智。

He became prickly and spiteful; witty and waspish about his colleagues.

他变得敏感、爱记恨；对他的同事揶揄、刻毒。

As this insightful, waspish book shows, the hidden similarities were greater than the visible differences.

正如这本深刻、尖锐的著作所指出的，暗藏的相似点大于可见的不同点。