具有讽刺意味的是，认为这种游戏有害和认为其无害的科学家们在寻找同样的征兆，只是他们把这征兆看成了两种完成不同的事物。
The irony is that scientists who think the games are harmful and those who think they're not are both looking at the same evidence. They just see two different things.
而阴极则是无害的贮氢合金而非有害的镉。
The cathode, however, is composed of a harmless hydrogen-absorbing alloy instead of toxic cadmium.
这些微生物被命名为anammox，它可以把碱和有害的氨转化成氮气，无害的氮气是我们呼吸的空气的主要组成成分，占到了空气的78%。
These creatures, now called anammox bacteria, transform caustic and hazardous ammonium into dinitrogen, the harmless nitrogen gas that makes up 78% of the air we breathe.
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