They stood up for what they believed to be right.

他们捍卫了他们认为正确的东西。

《柯林斯英汉双解大词典》

Ask them if they stood up for you.

问问他们是否站在你这边。

youdao

After saluting him, they stood up.

他们向他顶礼以后，站了起来。

youdao

If they stood up to Mr Major, there is little doubt who would cave in.

ECONOMIST: TV debates

They stood up to a lot of abuse this weekend at Maker Faire, being driven around the track by scores of children with a penchant for crashing things into each other.

ENGADGET: MakerBot's Turtle Shell Racers cruise around our offices (video)

They stood up for their city and they stood up for their country and they stood up for the memory of all of those brave Americans who died on that horrific day.

CENTERFORSECURITYPOLICY: Center For Security Policy