Hermetization
密封, 封闭
🗣️ 情景例句
Well, before I go to college,
嗯，在我进大学之前，
What part of the world do you come from?
你从世界的哪部分来的？
Yes, they're free. But there's usually a long line.
是的，免费。但常常要排长队。