Rarefication
n. 变稀薄, 稀薄
🗣️ 情景例句
You're home from school early.
你今天从学校回来得早。
So our evenings will be quite full then?
那么我们的活动在晚上也安排满了吗？
Half an hour later, another man struck a match for a cigarette and this time the whole of the inside of the ship caught fire.
半小时后，又一个工人擦亮火柴想点支香烟，这下整个船舱都起了火。