Multistage
a. 多级的, 多阶段的\\n[机] 多级
🗣️ 情景例句
Honey, if there were any problems,
亲爱的， 假如有事的话，
A faithful friend is hard to find.
益友难得。
Please forgive me for not writing to you.
原谅我没有写信给你。