單詞用法:
ADJ Something that is hard is very firm and stiff to touch and is not easily bent cut or broken。
翻譯:堅硬的東西摸起來非常堅硬,不容易彎曲、割傷或折斷。
ADV If you work hard doing something,you are very active or work intensely,with a lot of effort。
翻譯:如果你努力做某事,你會非常積極,或者工作很緊張,付出了很多努力。
ADV If you look,listen,or think hard,you do it carefully and with a great deal of attention。
翻譯:如果你認真地看、聽、想,你會仔細地、全神貫注地去做。