hard的副詞形式是什麼[朗讀]

hard的副詞形式還是hard
hard
adj.努力的；硬的；困難的；辛苦的；確實的；嚴厲的；猛烈的；冷酷無情的。
adv.努力地；困難地；辛苦地；接近地；猛烈地；牢固地。
擴展資料。
hard work never hurt anyone
努力工作絕無害處。
that's a very hard question
那是個很難的`問題。
it's pretty hard to explain
這事很難解釋清楚。
i find that hard to believe
我對此感到難以相信。
his father was a hard man
他父親是個冷酷無情的人。