endeavour       
 verb [ I + to infinitive ] UK (US endeavor) uk/enˈdev.ər/ us/enˈdev.ɚ/
C1 努力;奋力
to try to do something
  Engineers are endeavouring to locate the source of the problem. 工程师们正竭尽全力查找问题的根源。 
 Synonyms: attempt strive
 endeavour       
noun [ C or U ] UK (US endeavor) uk/enˈdev.ər/ us/enˈdev.ɚ/
C1 尝试;努力
an attempt to do something
  In spite of our best endeavours, it has proven impossible to contact her. 尽管我们尽了最大的努力,但最后还是未能联系上她。 
 Crossing the North Pole on foot was an amazing feat of human endeavour. 徒步穿越北极是人类探索领域的一次壮举。 
 artistic endeavour 对艺术的探索 
 Synonym: attempt (ACT OF TRYING)