One small crack does not mean that you were broken; it means that you were put to the test and you didn't fall apart.

一条小小的裂缝并不代表你破碎了，它意味着你曾经受过考验，并且没有被击垮。

2.fight off 击退

Protein can help the body fight off a flu.
 

蛋白质可以帮助你的身体抵抗流感。