"你要坚持啊"用英语可以表达为"You must persevere." 或者 "You need to keep going."。

"坚持"一词的英文意思是"to persist in an activity or pursuit despite obstacles or discouragement"，意思是坚持做某事或追求某个目标，不论有多少阻碍或挫败感。

下面是一些例句，希望能帮助你更好理解这个表达的用法：

You must persevere if you want to succeed. 如果你想要成功，就必须坚持下去。
I know it's tough, but you need to keep going. 我知道这很难，但是你必须坚持下去。
It's important to persevere in the face of challenges. 在面对挑战时，坚持下去是很重要的。
He has always been a very determined and persevering person. 他一直是一个非常有决心和坚持不懈的人。