hence近义词是 therefore
例句
1、
We suspect they are trying to hide something, hence the need for an independent inquiry.
我们怀疑他们在企图隐瞒什么事,因此有必要进行独立调查。
2、
Everyone wanted to bowl, hence everyone wanted to open a bowling alley.
大家都想玩保龄球,因此大家都想开保龄球馆。
3、
The true consequences will only be known several years hence.
真正的后果只有在几年之后才能知道。