1·Because the new salesman was as sharp as a tack, he was quickly promoted.
由于新业务员聪明机灵，他马上升官了。
2·Youre so right. Mr . John is as sharp as a tack, so we need to pay extra attention to detail.
您说的对。约翰逊先生精明的很，所以我们连小的地方也要特别注意。
3·Therese moved in with Charlie, who's still sharp as a tack, during a bad time in both their lives.
在他们俩生活的艰难时刻，特里萨正处于与查理一起生活，他至今依然思维敏捷。
4·Along with some of his fellow Rangers, he walked me through the program - a strong, impressive young man, with an easy manner, sharp as a tack.
在游骑兵同伴的陪同下，他按原定计划走向我——他是个强壮、令人印象深刻的年轻人，举止随和，风度翩翩。