unknown (unspecified) trees是什么意思 unknown (unspecified) trees怎么读
unknown (unspecified) trees的英文翻译是什么意思，词典释义与在线翻译
名词 unknown:- an unknown and unexplored region
- anyone who does not belong in the environment in which they are found
- a variable whose values are solutions of an equation
形容词 unknown:- not known
- being or having an unknown or unnamed source
- not known to exist
- not famous or acclaimed
- not known before
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