roll down

• 短语动词，指通过滚动或旋转使某物向下移动，或把某物（如车窗、玻璃等）降下、摇下。

A phrasal verb used to indicate the act of moving something downwards by turning or rotating, or to lower something (e.g., a window or a car window).

不可数 · 及物和不及物 · 短语动词，可分

1. Move downwards by turninginformal

   To move something or cause something to move downward by rotating or turning over.

   滚下

   • The ball rolled down the hill.
   • She rolled down the window to get some fresh air.
   • He accidentally rolled down the stairs.

   同义词trundletumbletumble-down

2. informal

   To lower or reduce something, such as a window or a volume.

   调低或减小

   • Please roll down the car window.
   • He rolled down the volume on the radio.
   • She rolled down the blinds to block the sun.

   同义词decreasediminishlowerreduceturn down

   反义词boostincreaseraise

基本动词roll