long before before long哪个可以引导从句? 要准的

来源:百度知道 编辑:UC知道 时间:2024/09/28 10:01:24

1. long before 可以引导从句:
This all happened long before you were born.

2 before long 为时间状语表示soon or in a short time
It's likely that the law will be abolished before long.

before long当作副词使用,意为不久以后,不可以引导从句。

long before指在某事之前很久,由于before在此是介词,因此可以引导从句。

before long 同楼上;long before 是短语连词或短语介词,意思是”在....之前很久”,后接名词性短语或从句,作时间状语.