Subclasses
n. 子类；亚类（subclass的复数）
🗣️ 情景例句
A community center
一个社区中心
Parents usually put a small red paper packet under their child's pillow.
父母常常会在孩子枕头下放一个小红包。
By this time her legs were beginning to tremble,
这时她两腿累得开始发抖，