细菌

suǒ yǒu xì jūn dōu bǐ bìng dú dà

所有细菌都比病毒大。

All bacteria are larger than viruses.

xì jūn fán zhí hěn kuài

细菌繁殖很快。

Germs multiply rapidly.

kē xué jiā zài fēn lí yǒu hài xì jūn

科学家在分离有害细菌。

Scientists are separating harmful bacteria.

fā guāng xì jūn

发光细菌

photobacterium

xì jūn zài tǐ

细菌载体

bacteria carrier

yǒu hài de xì jūn

有害的细菌

noxious bacteria

xì jūn chuán bō

细菌传播

the spread of bacteria

xì jūn chuán rǎn

细菌传染

a bacterial infection