Fluorosilicate
氟硅酸盐
🗣️ 情景例句
Nervous about the opening tonight?
对今晚开幕感到紧张吗？
Self-confidence is the first requisite to human greatness.
人类的伟大，首要的是要有自信。
Why don't you buy a radio? Then you can listen to China Radio International or BBC English programmes on the radio.
你为什么不买台收音机呢？那样你就能听中国国际广播电台或者BBC英语广播节目了。