这种化学物质对环境有危害。

This chemical can harm the environment.

接受他的好友请求会有危害吗？

Is there any harm in accepting the request?

很久以来，这些含酒精的能量饮料被认为是有危害的，但是研究还没证明与规律性饮酒相对，这危害有多大。

These alcoholic energy drinks have been seen as dangerous for quite some time now, but studies have yet to really quantify just how drastic the risk is when compared to regular alcohol.

但柿子也有不足之处，食之过多也有危害。

But the persimmon also has the deficiency, eat too much is harmful.

别人抽烟，你吸入，确实会对你的肺有危害。

It surely does harm to your lungs if other people smoke and you breathe it in.

金属物体RF感应电压对人员和燃油都有危害。

The RF induced voltage of the metallic object is harmful to persons and fuels.

总而言之，某事既有好处，也有危害，取决于我们如何对待它。

In sum, sth. can do us good or harm, all depending on how we make use of it.

关键这是它是无毒的化学物质，在使用中不会有危害。

The key is that it is non-toxic chemical substances, in the use of no harm.

人有压力是正常的，但是压力可能是健康的也可能是有危害的。

Stress is normal and can either be healthy or destructive.

它的同伴大蒜也有助于从体内清除废物和对人体有危害的辐射。

A working companion, garlic, also helps eliminate waste materials and dangerous free radicals from the body.