Dinitrodiazophenol
二硝基重氮酚
🗣️ 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.
I'm afraid you will be too weak.
我怕你会太虚弱。
Excuse me. Where's the nearest post office, please?
请问，最近的邮局在哪儿？