Ultrapurity
超純度
??? 情景例句
Can't you figure it out?
找不到答案嗎？
Nice to see you, my old friend.
真高興見到你，我的老朋友。
Tickets, please. May I see your ticket please, madam?
請出示車票。夫人，請問我可以看看你的車票嗎？