Lathosterol
7-烯胆(甾)烷醇
🗣️ 情景例句
It's good to see you so happy.
能看见你如此高兴 ，太好了。
Education begins a gentleman, conversation completes him.
人的教养始于教育，成于社交。
I don't understand! What do you mean? asked Mrs Brown.
“我不懂！你说的是什么意思？”布朗夫人问道。