smart既可以做形容词又可以做副词
adj.聪明的；敏捷的；漂亮的；整齐的
adv.聪明伶俐地,轻快地,漂亮地
如果加ly变为副词则它的意思为.潇洒地；刺痛地；伶俐地；机敏地
例句：
She always gets her children up very smartly.
她总是把孩子们打扮得很漂亮.
Peabody has played this smartly.
皮博迪这步棋走得很聪明.