Diboride
二硼化物
🗣️ 情景例句
Put your cards on the table.
把牌都摊到桌面上。
How can you be so stubborn?
怎么那么死脑筋？
Two of his assistants had been working busily since eight o'clock and had only just finished.
他手下两名店员从早上8点就开始忙碌，这时刚刚布置完毕。