Rarefies
vt. 使稀薄（rarefy的第三人称单数形式）
🗣️ 情景例句
I want to buy a sleeper ticket to New York.
我想买张到纽约的卧铺票。
Thank you but this is something I have to do on my own.
但有些事情我必须自己做主。
When I was a teenager, I felt that I was just young and uncertain --
我十几岁时，总感到自己年轻，有些事拿不准 --