used to suggest that although you could say more, what you do say will be enough to explain what you mean 无须多说；只需说…就够了
First, the car wouldn’t start, and then I got stuck in traffic—suffice it to say, there was no way I could get here on time.
首先，我的车就是不能启动；其次，我堵车了。这些就足以说明我没办法按时到达这里。
Suffice to say, she has a lot on her hands with four children.
无须多说，带四个孩子让她忙得团团转。