Coboundary
[计] 上边缘
🗣️ 情景例句
You will only have to pay another ten cents and a nickle for your child.
你只需另外再付10美分，而你的孩子只要再付5美分。
It is a small flock that has not a black sheep.
家家难免有败类。
No. Tomorrow afternoon.I'll miss him.
不，明天下午。我会想念他的。