Alkyle
[医] 烃基化物
🗣️ 情景例句
It's not necessary to whisper, Harry.
没有必要压低声音说话， Harry。
He turned white with amazement.
他害怕得脸都苍白了。
I'm hungry. I haven't eaten anything since yesterday.
我很饿了，昨天到现在都没吃过东西。