Dihydrocostunolide
二氢广木香内酯
🗣️ 情景例句
He's writing to invite me
他写信邀请我
I leave the house at eight a.m. each day.
我每天在上午8点离开房子。
Are you going to be a sailor when you leave school?
你毕业后打算当海员吗？