Gub
abbr. generalized upper boundary 模糊上限
✅ 同义词
🗣️ 情景例句
His concert brought the house down.
他的音乐会博得满堂彩。
A good teacher should always avoid embarrassing his students.
一位好的教师无论何时都应该避免使学生感到难堪。
She left home when she was eighteen and has lived in Los Angeles for the past fifteen years.
18岁时，她离开了家。过去的15年里她一直住在洛杉矶。