If something such as a part of a machine jams, or if something jams it, the part becomes fixed in position and is unable to move freely or work properly. 卡住
noun [专属名词] 宽短裤；短裤睡衣
People are fed up with all these traffic jams. 人们厌烦这么多的交通堵塞。
- jams 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 51 Predicting the future
