What if 万一,如果 (指未来有可能出现的坏状况)
What if the bus is late?
If 如果 (较中性,表条件)
I’ll help you, if you’re stuck.
In case 万一,如果(预防某种坏状况发生)
You’d better take the keys, in case I’m out.
treat v. 对待、治疗、请客、把…视为
n. 享受、请客、招待
treatment n. 对待、待遇、治疗
trick or treat 不给糖就捣蛋
Dutch treat/ go Dutch 各付各的(钱)
my treat 我请客
medical treatment 医学治疗
https://youtu.be/G9A-L5bIA_o?si=dpRionti6bREIMj1