Backfile
[计] 后援文件
🗣️ 情景例句
Hello. This is an emergency. Can you please send an ambulance?
喂，这儿有急病患者，请派一部救护车来。
Sightseeing
观光
Mum, this is my teacher, Miss Gao.
妈妈，这位是我的老师，高小姐。