oversleep 是睡过头的意思，sleep in是睡了个懒觉的意思

两者的区别就是：前者是无意识的睡过了自己应该起床的时间

后者是有意赖床不起睡了个懒觉

例句：I overslept this morning, so I was late for my work.

Today is my holiday, so I slept in until 10 o'clock in the morning.

呵呵~知道了,谢谢.

嗯，听起来也应该是这样的。

I overslept this morning, so I was late for my work,

Today is my holiday, so I slept in until 10 o'clock this morning!

o, I see , thank you very much!

呵呵[1_15] 明白了

oh,the quilt is so warm,I just want to sleep in..

but dont be late,cuz yesterday I overslept in a sweet dream..

so good I like it

I do not like sleeping in~

every good!!