最佳答案
差別就是兩者意思是一樣的，但skilled為非謂語動詞情勢表描述詞性而skillful為描述詞後綴ful。
skilled中辭意思是adj. 純熟的，有技能的；技巧性的，須要純熟技巧的
skillful中辭意思是adj. 純熟的；奇妙的
Business people who have hired or worked with MBAs say those with the degrees often know how to analyze systems but are not so skillful at motivating people.