Bka
abbr. 膝下截肢（below the knee amputation）
🗣️ 情景例句
Oh, hi, Robbie. Good morning.
啊 ，Robbie， 早安。
This is the schedule for tomorrow.
这是明天的日程安排。
The bus was full. We couldn't get on.
车挤得满满的，我们上不去。