unimpair

词形变化

unimpairing unimpairs 三单 unimpairs unimpairing 现在分词 unimpaired 过去式 unimpaired 过去分词

释义与例句

v.
  1. 1.

    To restore from an impaired condition.

    罕用 及物

    The mission of the National Park Service is expressly to preserve, unimpair the natural and cultural resources and values of the National Park System for the enjoyment, education and inspiration of this and future generations.

词源

From un- + impair.

来源：wiktionary