Biosafety
n. [常用作定语]生物研究安全性
🗣️ 情景例句
Then think about the word in a sentence.
然后把这个词放到句子的环境中去。
How long have they been married?
他们结婚多长时间了？
Have you received a letter from Jim yet?
你收到了吉姆的来信没有？