common crossing

名词 n.
中文释义

英文释义

名词 n.
  1. Used other than figuratively or idiomatically: see common, crossing.
  2. The part of a railway switch or turnout where the running-rails cross; a frog.
    — The frogs are made of steel rails; for all common crossings a check rail is placed on each side, at least 12 feet in length, and much longer in special cases. The narrowest part of the throat of the frog is 1¾ inches wide.

词形变化

common crossings plural
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