ballast up

短语

词形变化

ballasted up ballasting up ballasts up 三单 ballasts up ballasting up 现在分词 ballasted up 过去式 ballasted up 过去分词

释义与例句

v.
  1. 1.

    To ballast (stabilize or load with a weight) (something, e.g. a ship).

    及物

    The ship was ballasted up with sand and rocks.

  2. 2.

    To ballast (lay a material on the bed of a railroad track) a track.

    及物

    The workers ballasted up the tracks last month.