unupgradable

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. That cannot be upgraded. not-comparable
    — This has led to the employment of a large number of unskilled, low skilled and unupgradable staff, who, over the years, have become more or less permanent and who have aspiration for security […]

词源

From un- + upgradable.
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