深蹲是锻炼大腿前侧肌肉四头肌的好方法。

Squats are great for strengthening your ___quads.

他在比赛中赢得了四枚金牌。

He won a ___quad of gold medals in the competition.

学生们喜欢在四方院里吃午饭。

Students like having lunch in the ___quads.