1. Sharp ①滑头（名词）；②时髦的（形容词）
① He's so sharp that he's not going to fall for it.
他这个滑头，根本不会上当。
② Your suit looks so sharp!
你的西服看起来很挺嘛！
链接：
smart：聪明的，时髦的
sharper（名词）：滑头，出老千的赌客
2. Shoot fish in a barrel 瓮中捉鳖，十拿九稳
The police have surrounded the house the thief is in. It's like shooting fish in a barrel.
所有的警察把有贼的屋子包围了起来，准备来个瓮中捉鳖！
释义：原意为射桶里的鱼，用成语来形容就是瓮中捉鳖，十拿九稳。