Kubonit
氮化硼
🗣️ 情景例句
I'm sorry but the food was late and it was cold when it got here. I don't think I want to pay.
真抱歉饭菜上晚了，而且它上桌时已经变冷了，所以我不想为此付账。
I can't seem to get to sleep.
我好象睡不着。
She wanted to borrow my radio.
她想要借我的收音机。