He may say no, but there's no harm in asking.

他可能拒绝，但问一问也无妨。

《牛津词典》

They are not always willing to take on untrained workers, but there's no harm in asking.

他们一般不愿意雇佣没有受过训练的工人，但是问问也无妨。

《柯林斯英汉双解大词典》

There's no harm in leaving a little earlier.

不妨早点动身。

《新英汉大辞典》

And this is why the humor-- why the damage is often a certain sort of damage involving things like embarrassment, sex, scatology, a banana peel, pie in the face, your pants fall down or something, where there's no real harm.

这就是为什么幽默-,所涉及的伤害通常都是,涉及尴尬，性，不雅语言，香蕉皮，摔到脸上的派，掉裤子之类的，这些情况没有造成真正伤害。

耶鲁公开课 - 心理学导论课程节选

"There's no harm in having it, " he says.

FORBES: Pharmaceuticals

However, he said, there's no harm in taking a 200-IU dose of vitamin D because it's difficult to get the recommended daily amount of 600 IUs from food alone for children and adults up to age 70.

WSJ: Vitamin D and Calcium Supplements May Not Stop Fractures

But if you eat (almost) anything in moderation, there's no harm.

CNN: Coca-Cola weighs in on obesity fight