Deathnium
(空穴和电子的)复合中心, 掺杂(有害物质)
🗣️ 情景例句
I need to confirm my reservation.
我要确认我的预定。
That's awful.
那太可怕了。
Good morning. Could I have some bottles of milk, please?
早上好。我想买几瓶牛奶？