Bivacancy
(在原子外壳中的)双空位
🗣️ 情景例句
It doesn't need any alterations. We must've bought the right size.
不需作任何修改。我们一定是买对了尺寸。
Does Louis like lemonade sour?
路易斯喜欢酸味强烈的柠檬水吗？
Come in and sit down. Wei Hua!
进来坐坐，魏华！