Marrubiin
夏至(草素)味苦透明的内酯C20H28O4
🔁 扩展释义
【化】 夏至草素(得自欧夏至草的双萜内酯)
🗣️ 情景例句
What did you do?
那你们怎么办呢？
If he doesn't stay, who will?
如果他不，谁要留下？
I think the shop is closed at this time of day.
我想商店在这个时间已经关门了。