Gg
abbr. 地面制导（Ground Guidance）；煤气发生器（Gas Generator）
🗣️ 情景例句
Then an adult must sign for you.
那就必须有一位成年人来替你签字。
There is nothing which has not been bitter before being ripe.
事情在成功前没有不艰苦的。
All machines are slightly different, so you need a short lesson when you start work in a new office.
所有的机器都稍微有些不同，所以当你新到一个办公室开始工作时，你需要进行短期培训。