the methods that are used to stop a disease or infection from spreading from one person, animal, or place to others生物安全
Chicken farmers have strengthened biosecurity to prevent contamination from people who have visited live-bird markets.养鸡场农庄主加强了生物安全措施,以防去过活鸟市场的访客身上携带的污染。
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net 切換為繁體中文