He is never behind with [in] his work.
他工作從不拖拉。
He was behind in [with] his rent.
他拖欠了房租。
He helped a classmate who was behind with his homework.
他幫助一位沒有按時完成作業(yè)的同班同學。
2 . be behind in doing sth 做某事不落在后面。如:
The boy is behind in handing in homework.
這孩子沒能按時交家庭作業(yè)。
He was never behind in offering suggestions.
他提建議從來不落在別人后面。
3 . from behind 從后面。如:
He held her from behind.
他從后面抱住她。
They attacked us from behind.
他們從后面攻擊我們。
注:有時 behind 是介詞,其后可接賓語。如:
He came out from behind the door.
他從門后出來。
4 . fall [drop ] behind 落在后面。如:
I’ve fallen behind in work. 我工作落后了。
Some students dropped behind in their studies.
有的學生在學習上落在后面。
5 . leave sth behind 走后留下某物。如:
What have we left behind?
我們走后留下什么了?
He left his umbrella behind.
他離開時沒有把雨傘帶走。
6 . stay [remain ] behind 留下,在別人后面留下。如:
He alone remained behind.
只有他一個人留下沒走。
I had to stay behind after school.
放學后我還得留在學校。