Bipositive
[医] 二正[原子]价的
🗣️ 情景例句
We have four people in the family, my parents, my elder brother and I.
我家有 4 口人，我的父母，我的哥哥和我。
Have you marketed your product yet?
你们的产品尚未推出市场吗？
That's terrible.
真糟糕！