sack，当"口袋"讲。

当然，什么"粗布袋"啦，"麻袋"啦，你统统都可叫做 sack 罗。

那么说"睡袋"呢？对呀，睡袋也是 sack。

别说是睡袋，渐渐的在俚语中把"床"都叫做 sack 了。

所以今后想表达"上床，睡觉"这样的意思，不一定非要用到 bed了。

例如?

I bet he's still in the sack.

我可以肯定他还在睡觉。

sack 还可以当成动词用，比如?sack in，好比是"钻进被窝"，比起 go to bed 来，要形象得多了。

◎I was in the ____ when he dropped in.

1bed

2bag

3sack

4pocket

i was in the sack whe he dropped in.

3sack

i was in the sack whe he dropped in.