Pig out:

暴飲暴食；狼吞虎咽

例句：

Some are so accustomed to pigging out, they can't cut back.

有些人習慣暴飲暴食了，他們不可能縮減食量。

Bolt down:

Eat a large amount of food qu

狼吞虎咽

例句：

Don't bolt your food down like that. 

別那樣狼吞虎咽地吃東西。

 

I like to think back to high school, when I could bolt down three or four burgers and a pile of French fries. 

我喜歡回想高中時，那時我可以一氣吞下三四個漢堡和一大堆炸薯條。

Pick at:

吃一點點

例句： 

My father wasn't feeling well, so he picked at his dinner.

我爸爸感覺到不舒服，所以他只是吃了一點晚飯。