life buoy

短语

救生圈

词形变化

life buoys 复数

别名

life-buoy

释义与例句

n.
  1. 1.

    A buoyant object (most commonly torus-shaped) that is used as a life-saving device by keeping a person afloat.

  2. 2.

    Something that rescues one from difficulties.

    比喻

词汇关系

词源

From life + buoy.

来源:wiktionary