1. 傳病媒介把致病微生物從一個宿主傳到另一宿主的生物，如蚊子或虱蠅等
   An organism, such as a mosquito or tick, that carries disease-causing microorganisms from one host to another.
2. 微生物很小，肉眼看不見。
   Microbes are too small to be seen by the naked eye.
3. 射線殺菌法破壞某種食品，如魚或蚌肉內的大部分微生物的行為或過程，通過γ射線或其它放射線輻射的防止變質
   The act or process of destroying most microorganisms in certain foods, such as fish or clam meat, by irradiating them with gamma rays or other radiation to prevent spoilage.
4. 有生源說，胚種論一種學說，認為來自宇宙空間的微生物或生物化學物是地球上生命的起源，并且在宇宙的其他部分可能有適合的大氣狀況存在
   The theory that microorganisms or biochemical compounds from outer space are responsible for originating life on Earth and possibly in other parts of the universe where suitable atmospheric conditions exist.

微的英語翻譯：

生物的英語翻譯：