来自黄晓鸣的问题
itisnecessarythatyoustarttrainingafewmonthsbeforethesportsmeeting的同义句——necessary——trainingafewmouthsbeforethesportsmeeting
itisnecessarythatyoustarttrainingafewmonthsbeforethesportsmeeting的同义句
——necessary——trainingafewmouthsbeforethesportsmeeting

