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。

youdao

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。

youdao

But I found this online for infants is extremely harmful.

但我在网上查到这对婴儿是极其有害的。

youdao

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