Biosecurity
生物安全
🗣️ 情景例句
Do you feel like eating?
想吃东西吗？
I will assist you in any way I can.
只要能做到的，我什么事情都愿为你做。
You can't buy them in the shop before eight o'clock.
上午八点之前你在商店里是买不到东西的。