Infinitival
a. 不定式的
🗣️ 情景例句
Good night, Mrs. Stewart.
晚安，Stewart太太。
Life is a comedy to him who thinks and a tragedy to him who feels.
对善思考者，人生为喜剧；对凭感觉者，人生为悲剧。
How would you go to Beijing, by air or by train?
你怎样去北京，是乘飞机还是坐火车？