No one has yet made a persuasive case that it would do any real harm, either.

但是没有人能提供有说服力的例子证明它有任何坏处。

No real harm done, but it made a big mess of both the tree and the yard under it.

这并不造成真正的伤害，只是把树和院子搞乱，一种万圣节的恶作剧。

Such low concentrations may cause slight irritation to the eyes and skin, but there's not enough chlorine to cause any real harm to swimmers.

这样的低浓度可能只会对眼睛和皮肤产生轻微刺激，但对游泳的人来说不会产生真正的伤害。

Butterfly experts said there was no real harm in the practice but the butterflies should only be released outside and on warm days to allow them time to find food and shelter before nightfall.

蝴蝶专家说这对蝴蝶没什么伤害，不过放飞蝴蝶应该在户外并在温暖的日子里进行，好让它们能在黄昏前找到食物和栖身之所。