preobtain

词形变化

preobtained preobtaining preobtains 三单 preobtains preobtaining 现在分词 preobtained 过去式 preobtained 过去分词

释义与例句

v.
  1. 1.

    To obtain beforehand.

    及物

词源

From pre- + obtain.

来源：wiktionary