bite off more than one can chew 好高骛远,不切实际,贪多嚼不烂,心有余而力不足,不自量力 Do your best. Do whatever you can but don't bite off more than you can chew. 尽最大努力,做你能做得到的事,但不要好高鹜远。 I think I bit off more than I can chew, when I decided to cook for the entire family. 我原本打算给全家人做一桌子菜,现在觉得这个想法有些不切实际。