请随便吃些鱼用英语怎么说

"Help yourself to some fish" 是一种常用的表达方式，意思是自己随便吃些鱼。这个短语来自于英语中的一种习惯用语，常用于邀请别人吃饭或喝茶时。

例句：

"Help yourself to some fish, it's freshly caught today."（随便吃些鱼吧，今天刚捉上来的）
"The fish is ready, please help yourself." (鱼已经准备好了，请随便吃)
"I caught a lot of fish today, help yourself" (今天我钓了很多鱼，随便吃吧)