Stad
abbr. 学生小组成绩分工法（Student Teams and Achievement Divisions）
🗣️ 情景例句
You are a walking dictionary.
你是活字典。
I'm feeling rather blue.
我觉得有些沮丧。
She bumped into the furniture and kept mumbling about the guests.
她撞到了家具上，嘴里还不断咕咕哝哝议论客人。