Definition: Clothes or colours that are sober are plain and not bright. Level: C2
她为面试选择了一条朴素、灰色的连衣裙。
She chose a ___sober, grey dress for the interview.
彼得穿了一套蓝色西装，打着一条朴素的领带。
Peter wore a blue suit and a ___sober tie.
房间用朴素的颜色装饰，以营造平静的氛围。
The room was decorated in ___sober colours to create a calm atmosphere.
