Nonterminal
非终结符号, 非末端
🗣️ 情景例句
I'm so glad everyone is asleep.
很高兴大家都睡了。
You're very kind to take the trouble to help me.
谢谢你不怕麻烦帮助我。
How do you go to work everyday?
你每天怎么上班？