adv (1)今天(on the day on which one is speaking or writing this)：arrive/go to the beach～今天到達/去海濱;〖同〗on this day，now;
(2)當代(今);現(xiàn)在(at the present time in these days)：(children/women) get a good education/no longer accept such treatment～現(xiàn)在(兒童/婦女)受到良好的教育/不再受到這種待遇;〖同〗nowadays，now;
n(1)今天(day on which one is speaking or writing this)[U]：T～is my brother's birthday/the first day of spring. 今天是我兄弟的生日/春天的開始?！?s paper/ homework/work 今天的報紙/作業(yè)/工作;leave a week (from)～下周的今天離開;begin～next week 下周的今天開始;〖同〗this day;
(2)當代(今);現(xiàn)在(present day，time or age)[U]：the songs/clothes/world of～當今的歌曲/時裝/世界;the composers/young people of～當代的作曲家/年輕人;the～schedule/generation 目前的時刻表/當今的一代