见义勇为的英文：
[Literal Meaning]
see/justice/courage/do
to see what is right and have the courage to do it

[解释]
看到正义的事，就勇敢地去做。

[Explanation]
to act bravely for a just cause

[例子]
他一直想建立一个鼓励见义勇为的基金。

[Example]
He has been thinking about establishing a foundation to encourage brave actions for just causes.