difficult，adj.困难的;费力的;难做的;难解的;问题很多的;充满艰难困苦的;麻烦的;难以讨好的;难以取悦的;不愿帮助的;
例句Young people today face a very difficult future at work.如今的年轻人面临着充满困难的工作前景
difficulty，n.困难;难题;难事;困境;艰难;费劲;辛苦;困难程度;难度;
例句
His increasing financial difficulties forced him to take desperate measures.
不断增加的经济困难迫使他采取了铤而走险的办法。
