Perhalogeno-
[化] 全卤(代)(代替所有C上的氢)
🗣️ 情景例句
How well do I speak English?
我的英文说得怎样？
The milk in the refrigerator has begun to turn sour.
冰箱里的牛奶开始腐败了。
There's something wrong woth your ears. I think there's something near us.
你的耳朵有点毛病！我想我们附近有什么东西。