we do know what makes that life worth living.中worth是什么用法?还有that能省略吗?

问题描述:

we do know what makes that life worth living.中worth是什么用法?还有that能省略吗?

worth + doing表示值得做什么
that这里做代词,修饰life,解释为那个生命,可以换为the life.