Trogodermal
甲基十六碳烯醛
🗣️ 情景例句
Can I help you?
我可以帮上忙吗？
In college I majored in math, What was your major?
大学时我主修数学，你主修什么呢？
When several elephants are being trained at one time,
几只象同时训练时，