Quadrivalency
n. 四价
🗣️ 情景例句
How long will it take to get some more in from the factory?
从工厂再运一些货过来要多久？
Which one is more convenient?
哪一个是比较方便的？
That one is only 90 fen. That's cheap.
那支笔只有九毛钱，很便宜。