Fluorone
荧光酮, 3 -异咕吨酮
🗣️ 情景例句
Let's get in shape.
咱们去健身吧。
Careful!
小心！
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。