unguifer的相關(guān)資料：
臨近單詞
Unden
UN
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undifferentiated mesenchymal cells
unfavorable geographical condition
unconfined com-pressive strength
Unconventional Military Operations
Unconquerable obstacles to success
uncoupling electrogenic absorption
Unemployment is a major problem.
unchecked growth of the population
Unmanned Air Reconnaissance System
