Undermotorized
非全摩托化的
🗣️ 情景例句
A man next to me was smoking,and smoke really bothers me.
我旁边的那个人抽烟，我受不了。
In college I majored in science, What was your major?
大学时我主修自然科学，你主修什么呢？
Can we substitute in these things?
这几项可以用替代品吗？