00:00 / 00:00
播放/暂停
停止
播放时:倒退3秒/复读时长按:回退AB段
播放时:快进3秒/复读时长按:前进AB段
拖动:改变速度/点击:恢复正常速度1.0
点击:复读最近5秒/拖动:改变复读次数
设置A点
设置B点
取消复读并清除AB点
English in a Minute: Clam Up

A clam is a type of shellfish that lives in water. But what does it mean if a person "clams up?" Find out in this week's English in a Minute!