Piperonal(dehyde)
[化] 胡椒醛
🗣️ 情景例句
I'm afraid the cardboard boxes are not strong enough for transport by sea.
我担心这种纸箱，用于远洋运输，不够结实。
It's bleeding.You'd better go see a doctor about that cut.
它正在流血. 你最好为那个刀口去看医生。
Where are you from then ? Canada?
那么你是从哪里来的呢？加拿大？