Bipolars
(bipolar 的复数) a. 有两极的, 双极的\\n[计] 双极性
🗣️ 情景例句
While sitting on the bus I often meet interesting people.
乘车时，我经常碰到一些有趣的人。
It's a deal!
一言为定！
What was the population of the less developed countries in 1950?
1950年不太发达国家的人口是多少？