23.straighten out 扯平,结清 24.toss and turn (身体)翻来覆去(通常表示难以入睡) 25.turn one's back(在别人遇到困难时)不愿帮助 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 ...