Biannulate
a. [动]有二环纹的, 具两个色环的
🗣️ 情景例句
What books are required for this class?
这课需要什么样的书？
Sure. We are friends since primary school.
当然，我们从小学就是朋友了。
It's between the post office and the hospital.
它就在邮电局和医院之间。