26.under the weather 身体不适,生病 27.bite off more than one can chew 贪多嚼不烂,心有余而力不足,不自量力,力不从心 28.break new ground 创新 29.do the trick 做成功,达到理想的结果 30.drag one's feet 行动缓慢,磨磨蹭蹭不情愿 31.draw the line 拒绝,拒不容...