Dgps
差分GPS系统
🗣️ 情景例句
I do.
我愿意。
Which umpire will referee the baseball game?
不知道哪一个裁判要执法这场棒球赛？
I think we are the first people here for hundreds of years. Maybe thousands.
“我认为几百年，可能几千年以来，我们是第一次来这里的人。”