Nonstaple
a. 非主要的
🗣️ 情景例句
Tell me the courses you have completed in school and what is your favorite subject?
你曾修读哪些课程和你最喜欢哪一科？
Math is beyond me.
我对数学无能为力。
One third of this area is covered with forest.
这一地区三分之一的地方都是森林。