词汇	bitter lessons
释义	bitter lessons 痛苦的教训
随便看	build an air-raid shelter build an argument on fact build an argument on facts build a nation build an atom bomb build a navy build and development build and field engineering build and hold Build and maintain personnel training system build and promote build and run build an embankment build an enclosing wall build an enterprise build a nest build a network of waterways build a new countryside build a new home build a new life build a new model of major-country relationship build a new project file build a new socialist countryside build an oilempire build an open economy