It's those little things left undone that would make me angry if I knew that my hours were limited.

It's those little things left undone that would make me angry if I knew that my hours were limited.
It's those little things left undone that would make me angry if I knew that my hours were limited.

It's those little things left undone that would make me angry if I knew that my hours were limited.
这是那些没做完的小事使我生气,如果我知道我的时间是有限的.

it's ....that....是强调句。在理解时可以去掉。后面的if 表示条件壮语 如果。
如果我发现我的时间很紧迫，那些剩下的事情会让我生气。

如果我知道我的时间有限,那些没做完的小事会让我生气。

如果我知道我的时间紧迫，那些没做的琐事会让我恼火

如果我知道我的时间紧迫，那些没做的琐事会让我恼火
我要是知道那个事,那会使我生气!