adj.锋利的;急转弯的;敏锐的;狡猾的;严厉的;瘦削的;时髦的;急剧的;强烈的;鲜明的;突然而响亮的;升半音的;
adv.(…点)整;准时地;
n.升半音;锐利的东西;
例句:
a sharp knife
锋利的刀
a sharp rise in crime
犯罪率的急剧上升
a sharp outline
清晰的轮廓