from|behind是詞組嗎

from behind不是詞組

例句如下，請仔細體會

1、

The Australian in lane four is coming up fast from behind.

第四道的澳大利亞運動員正從後面快速追趕上來。

2、

He was grabbed from behind and propelled through the door.

有人從後面抓住他，把他推過門去。