Waas
abbr. wide area augmentation system 广域（全球定位系统）增强系统; World Academy of Art and Science 世界艺术与科学学会
🗣️ 情景例句
You have to expect the unexpected in Shanghai.
在上海，你总会有意想不到的收获。
Who said that?
谁说的？
There is a table in the room.
客厅里有张桌子。