V2EX bacteria

Bacteria

定义 Definition

bacteria(复数名词)细菌;一类肉眼通常看不见的单细胞微生物,广泛存在于土壤、水和生物体内。有些细菌会致病,也有很多对人体和生态有益。(单数常用 bacterium

发音 Pronunciation

/ bktri /

例句 Examples

Bacteria are everywhere.
细菌无处不在。

Some bacteria help us digest food, but others can cause serious infections.
有些细菌帮助我们消化食物,但也有些会引起严重感染。

词源 Etymology(简述)

源自拉丁语 bacterium,再上溯到希腊语 baktērion,意为“小棍子/小杖”,最初用来形容部分细菌在显微镜下呈“杆状”的形态;后来 bacteria 作为复数形式被广泛用作统称。

相关词 Related Words

文学作品中的用例 Literary Works

  • Sinclair Lewis《Arrowsmith》:以细菌学与医学研究为主题,涉及大量关于细菌与实验室工作的描写。
  • Albert Camus《The Plague(鼠疫)》:围绕传染病暴发展开,文本中常出现与“细菌/病原体”相关的科学与公共卫生语汇。
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