Also, certain types of bacteria are extremely harmful, and it takes only a small number to make you sick.

此外，有些类型的细菌是非常有害的，只需要少量细菌就能让你生病。

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Certain types of bacteria are extremely harmful, and it takes only a small number to make you sick.

有些种类的细菌非常有害，只需要一点点就能让你生病。

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Some parents would drag their kid into their quarrel, which is extremely harmful to the kid's growth.

一些父母会把自己的孩子卷入他们的争吵中，这对孩子的成长非常不利。

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They have the potential to be extremely harmful and it is North Lanarkshire Council's responsibility to get to the bottom of this.

BBC: Tests on Motherwell homes 'rule out' toxic land link

Breakfast eaters are also 40% less likely to develop fat around the belly, which can be extremely harmful to your overall health.

FORBES: 4 Ways To Sleep Better And Be Thinner

For example, a re-engineering of the Internet to make it easier to trace the location of cyberattackers, as some have called for, would surely be expensive, impractical and extremely harmful to privacy.

WSJ: Battling the Cyber Warmongers