1. a tiny living thing — for example, a bacterium, a virus, or a yeast cell — that
1.名詞B1
釋義
微生物
需用顯微鏡才能看到的微小生物
a tiny living thing — for example, a bacterium, a virus, or a yeast cell — that is far too small to be seen with the eye alone and can only be observed through a microscope.
例句
Mei-Lin saw thousands of tiny microorganisms swimming in a drop of pond water under her school microscope.
Mei-Lin 在學校的顯微鏡下，看到一滴池水中有成千上萬的微生物在游動。
concrete observation scene: see + under microscope
Yeast, a common microorganism, makes bread dough rise by releasing tiny bubbles of gas.
酵母是一種常見的微生物，它會釋放出微小的氣泡，讓麵糰膨脹起來。
everyday example: yeast as a type of microorganism
Doctors warned that the floodwater contained harmful microorganisms that could cause serious stomach illness.
醫生警告，洪水裡含有有害的微生物，可能導致嚴重的腸胃疾病。
harmful + cause illness (medical context)
Amara studied how microorganisms in the soil help break down dead leaves into nutrients for plants.
Amara 研究土壤中的微生物如何把枯葉分解，變成植物的養分。
Some microorganisms, like the ones used to make yogurt, are actually good for human health.
a specific type of single-celled microorganism, not a general synonym; use only when referring to bacteria
文法句型
plural: microorganisms
singular: a microorganism
用法筆記
Frequently appears in scientific and medical contexts. The singular form 'microorganism' refers to one individual; the plural is far more common in everyday use because these life forms are usually discussed in groups or types.
常見錯誤
Bacteria are the only type of microorganism.
Bacteria are one type of microorganism; yeasts, viruses, and some fungi are also microorganisms.
Microorganisms include many kinds of tiny life, not just bacteria.