Welcome to English in a Minute, where we teach you all about idioms in American English.

欢迎收听《一分钟英语》，在这里我们将教您一些美式英语中的俚语。

If you have ever heard American English, you might have heard this: Hit the sack.
如果你听过美式英语，也许会听过“hit the sack”（去睡觉）。
What does this mean? let's find out by listening to this conversation:
这是什么意思？让我们一起来在对话中寻找答案：
I'm exhausted and can't stay up another minute. I am going to hit the sack.
我累极了，不能在熬夜了。我要去睡觉了。（ hit the sack）
I probably should do the same. It's been a long day.
我也是的。这真是漫长的一天。
It sounds like they are tried and ready to sleep. That's what "hit the sack" means; you are going to bed.
听起来他们很累，准备去睡觉。“hit the sack”的意思是：你要去睡觉了。
During World War Ⅱ, American soldiers called their sleeping bags "sacks." So "hit the sack" meant to go to bed.
二战期间，美国士兵们把他们的睡袋叫做“sacks”。所以“hit the sack”的意思是睡觉。
Today, people use this phrase all the time.
今天，人们已经把这个短语用于日常生活。
Hit the sack.
睡觉。（hit the sack）
And that's English in a Minute.
以上就是本期的《一分钟英语》。