Rach
abbr. 随机接入信道（Random Access Channel）
🗣️ 情景例句
Do you know the phone number of the restaurant?
知道那家餐厅的电话号码吗
It's up to you.
一切由你决定。
We're sorry, but we 've had a slight price increase here.
真抱歉，不过我们出只涨了一点点而已。