Perhalogeno-
[化] 全卤(代)(代替所有C上的氢)
🗣️ 情景例句
OK, Philip. This is your third cup of coffee.
好啦 Philip。这是你第三杯咖啡了。
Why am I always expected to pay the bills?
为什么老是由我来付账呢？
I'm really looking forward to this.
我期待这次参观已久了。