card shark

[美俚]玩牌能手；玩牌时作假的高手

Sam is a card shark. Nobody likes to play card games with him.

山姆是个玩牌时作假的高手，没有愿意和他玩牌。

That card shark was arrested for his cheating in card games.

那个骗子因在玩牌中捣鬼已被逮捕。

注解：
card意指扑克牌，shark意指内行，能手；

a card shark系指玩牌能手，也喻指在玩牌时作假的高手。

eyes bigger than one’s stomach
[俗]眼馋肚饱

You ate so little but you ordered so much! I think your eyes are bigger than your stomach.

你吃得这么少可你却点这么多菜! 我觉得你是眼馋肚饱。

注解：
eye意指眼睛，bigger than意指比……大，stomach意指胃；

eyes bigger than one’s stomach系指眼睛比胃大，喻指眼睛看着想吃，却吃不下，眼馋肚饱。