Beryllia
氧化铍
🗣️ 情景例句
If you don't give me a better price, I won't buy this.
如果价格不更优惠些，我是不会买的。
If you expect to enter the university,you should apply now.
如果你期望进入大学，你现在应该申请。
How kind! Thank you.
你太好了！谢谢你。