Stad
abbr. 学生小组成绩分工法（Student Teams and Achievement Divisions）
🗣️ 情景例句
Lacks courtesy is ill-mannered.
不礼貌，举止不当。
It seems as if it's going to rain.
看起来天好像要下雨。
I don't think much of the movie.
我认为那电影不怎么样。