Polysubstituted
多取代的
🗣️ 情景例句
I don't know. The baby-sitter says she has a stomachache,
我不知道。临时保姆说她肚子疼.
As long as it doesn't snow!
只要不下雪就行啊！
'Excuse my interrupting you.
“请原谅我打断了您。