Rach
abbr. 随机接入信道（Random Access Channel）
🗣️ 情景例句
Do have some more, there's plenty left.
多吃一点，还有很多呢！
You can't make omelets (or omeletts) without breaking eggs.
有失才有得。
Did you leave it in water before you washed it?
在洗它之前您是不是把它泡在水里了？