Borides
硼化物陶瓷材料
🗣️ 情景例句
We were all sorry when we heard that your brother had had an accident.
我对你弟弟的意外感到遗憾。
Second thoughts are best.
三思而行，再思可也。
True eccentrics never deliberately set out to draw attention to themselves.
真正古怪的人从不有意引人注意。