difficultadj.困难的;艰难的;(人)难对付的;不易相处的
difficult eruption萌出困难
difficult disorder疑难杂症
difficult dressing难选
difficult maneuver复杂的特技动作
difficult delivery顺产
difficult sentence难懂的句子
difficult campaign苦战
difficult students学困生
difficult iron ore难选复合铁矿石
difficult question难题