Subtyping
v. 子类型化（subtype的现在分词）
🗣️ 情景例句
Try this. It's size eight.
试试这一件。尺码是八号。
Did the film live up to your expectations?
这部电影达到你期望的标准了吗？
I went home at half past five.
我5：30回家的。