down² adj [not before noun 不用于名词前] 1 unhappy 情绪低落的，沮丧的: I've never seen Brett looking so down. 我从没见过布莱特这么沮丧。 2 behind in a game by a particular number of points 〔比赛中比分〕落后…: We were down by 6 points at half-time. 上半场结束时我们落后六分。 3 a computer that is down is not working 〔电脑〕不能操作的