Cephalein
[化] 风箱树皮素; 荷草皮素
🗣️ 情景例句
It was very thoughtful of you to send flowers.
你送花来，想得真周到。
Success grows out of struggles to overcome difficulties.
成功来自于克服困难的斗争。
He was just falling asleep when there was a loud knock at the door.
他刚要入睡，就有人很响地敲门。