hit the sack

含义

to go to bed

上床睡觉.

例句

1. 1I've got an early train tomorrow, so I'm going to hit the sack now.
2. 2We played cards until two and didn't hit the sack until after three.
3. 3Tom was so tired after the move that he hit the sack before nine.
4. 4You look exhausted; why don't you hit the sack and finish the essay in the morning?
5. 5Shall we hit the sack, or watch one more episode before bed?

语法

只有 hit 变化形式：hits、hitting；过去式也是 hit。hit the hay 意思相同。