Halon
卤化烷（常用以灭火）
🗣️ 情景例句
It's completely beyond my grasp.
我完全摸不着头脑。
It is better to wear out than to rust out.
与其锈掉，不如用坏。
'It may have begun already,' Susan answered.
“也许已经开演了呢，”苏珊回答说。