Cephazolin
先锋霉素Ⅴ
🗣️ 情景例句
What pretty flowers! Thank you.
好漂亮的花!谢谢你。
My raincoat is purple.
我的雨衣是紫色的。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群，这一进展比较容易。