Friday，2025.02.07
New words：
customary [ˈkʌstəˌmeri] adj. 习俗的；习惯的
Sample Sentences：
It is customary to offer a drink or a snack to guests.
Do you really think it's customary to tip the waiters?
It is customary to eat Zongzi during the Dragon Boat festival.
tip [tɪp] v. 翻倒；给…小费