单词	凝重的乌云
释义	凝重的乌云 heavy dark clouds凝重
随便看	problem solving learning problem solving method problem-solving method problem solving methodology problem-solving methodology problem-solving methods problem solving mode problem-solving model problem solving oriented problem solving paradigm problem solving practice simulation problem-solving practice simulation problem-solving procedure problem solving process problem-solving process problem-solving processes problem solving research problem solvings problem-solvings problem solving set problem solving skill problem-solving skill problem-solving skills problem -solving skills problem-solving strategies