Verofylline
二氢二甲基甲丁基嘌呤二酮
🗣️ 情景例句
Happy langings!
一路顺风！
Nice to see you, my old friend.
真高兴见到你，我的老朋友。
The wooducutter was standing next to a fallen tree, with lots of small pieces of wood in front of him.
伐木工人正站在一棵倒下的树旁，他的前面有很多小片的木头。