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This is the word for ONE tiny living thing that has just one cell — so small you can only see it with a microscope. Some bacteria make us sick, but many are helpful, like the ones in yogurt or in soil that help plants grow. In everyday talk, almost everyone says "bacteria" even when they mean just one, so "bacterium" mostly shows up in science class or science writing.
細菌（單數形式；日常口語大多直接說 bacteria，很少特別講單數）
組成From Greek "bakterion", meaning a small stick or rod — early scientists thought these tiny living things looked like little rods under the microscope.
同家族的字
- bacteriathe plural form of this exact word
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
bacteriumnoun/bækˈtɪəɹ.ɪəm/
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biologymicrobiologynatural-sciencesA single-celled organism with cell walls but no nucleus or organelles.
- Plastics are energy-rich substances, which is why many of them burn so readily. Any organism that could unlock and use that energy would do well in the Anthropocene. Terrestrial bacteria and fungi which can manage this trick are already familiar to experts in the field.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。