call button

名词 n.
中文释义

英文释义

名词 n.
  1. A button used to request assistance.
    — Their feeling, anachronistic as the servants’ call button in their dining room, is that if you don’t have the money for something, you don’t buy it.
  2. A button used to request some form of mechanical service.; A button used to request a walk signal at a pedestrian crossing.
    — The Pedestrian Hybrid Beacon is designed to help pedestrians and bicyclists safely cross busy, multi-lane or high-speed streets. The beacon consists of two red lenses above a single yellow lens. The lenses remain “dark” until a pedestrian pushes the call button to activate the beacon.
  3. A button used to request some form of mechanical service.; A button used to summon an elevator.
    — No more staring at closed elevator doors, repeatedly pressing a call button in frustration.

词形变化

call buttons plural
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