They're bad by virtue of their very nature.

它们的源于其本身。

In fact, it's neither detrimental or essential for your health!

事实上，它对你的健康既没有，但也不是身体所需物质！

Midlife malaise isn't wrong or harmful, but closeting it is.

中年衰退本身不是错误，也没有，但将它隐藏起来就是了。

That does not absolve cholesterol of blame—on the contrary, carnitine boosts cholesterol's pernicious effect.

这并未免除了胆固醇的罪责，恰恰相反，左旋肉碱大大助长了胆固醇的。

So, once and for all, are video games bad for you?

那么，电子游戏有吗？

No, they aren't, as long as you aren't overdoing.

没有，只要你不过度沉迷。

It can never hurt to reread these things and think through what you're learning.

重读这些书、思考你学了什么永远没有。

But in high densities, seaweed can become problematic, and even lethal to corals.

但如其密度太高，海藻可能会带来，甚至会导致珊瑚死亡。

But, the long-term detrimental effects of Adderall abuse are clear.

但是，长期滥用 Adderall 是有显而易见的的。

" No harm, " she replied, controlling herself.

“没有什么，”她控制着自己回答说。

What are the harmful effects of excess ibuprofen intake?

过量服用布洛芬有什么？

And, a diet bad for human beings, it seems, is also bad for the environment.

而且看来，对类有的饮食方式对环境也有。

And she, in fact, had, you know, the opposite of benefits.

而事实上，她有。

But I suppose it wouldn't hurt to know who's on the committee.

但了解谁在委员会对我也没什么。

" Just once. What harm can it do? "

" 只来一回。这又有什么呢？"

" Well, it pleases him and it doesn't do me any harm" .

" 哦，他高兴这么做，对我又没有。"

But, hey, if it helps you concentrate, there doesn't seem to be too much harm in it.

但是朋友，如果它能帮你集中精神，那或许也没多大。

It may seem like an extreme activity for a child, but Dr. Laura Blaisdell sees no harm.

对一个孩子来说，这似乎是一种极端的活动，但劳拉·布雷斯德尔博士认为没有什么。

Really, talking in your sleep is an often harmless thing that can happen without a clear underlying cause.

真的，说梦话常常是件没有的事情，它有时会在没有明显的潜在原因下出现。

" Oh, but why did he do that? They couldn't have done him any harm, " cried Melanie.

" 唔，他们对他不会有什么嘛，他干吗要这样呢？" 媚兰大声嚷道。