3g
abbr. 第3代移动通信技术（The 3rd Generation Telecommunication）
🗣️ 情景例句
How many days will it take for my mail to reach its destination?
我的信件到达目的地要用几天？
As soon as he comes, we'll let him know.
他一来，我们就告诉他。
I well.
好的