Bibasic
a. 二元的, 二碱价的\\n[医] 二硷的, 二元的, 二代的
✅ 同义词
🗣️ 情景例句
Four will be good.
4只应该够。
Eat one's cake and have it.
又要马儿好，又要马儿不吃草。
I think the shop is closed at this time of day.
我想商店在这个时间已经关门了。