preexchange

词形变化

preexchanges 复数 preexchanges preexchanged preexchanges 三单 preexchanging preexchanging 现在分词 preexchanged 过去式 preexchanged 过去分词

释义与例句

n.
  1. 1.

    An exchange that takes place beforehand.

  2. 2.

    An interaction that introduces and leads to but is not yet a true exchange.

v.
  1. 1.

    To exchange beforehand.

adj.
  1. 1.

    Occurring before an exchange.

词源

From pre- + exchange.

来源：wiktionary