adventitious [ˌædvɛnˈtɪʃəs, -vən-]

例句:

• The strike was broken , of course, but mainly by a series of adventitious developments.
  罢工是中断了, 但主要还是由于发生了一系列意外事件.
  
• The adventitious root is triarch, and has the secondary structure.
  不定根为三原型, 具次生结构.
  
• Stem erect or floating, elongate, 5 - angled, nodes often with adventitious roots.
  茎直立或漂浮, 拉长, 5具角, 节通常具不定根的.
  
• In the Banyan tree adventitious roots are frequently developed on the outstretched woody branches.
  来自A. Henfrey