Biunique
a. [数]一( 对) 一的, [语]单向双系列对应的
🗣️ 情景例句
And down will come baby,
宝宝跌下来
There's many a slip between the cup and the lip.
天有不测风云。
We need some meat.We haven't got any meat at all.
我们需要些肉。我们一点肉也没有了。