(adj.) requiring effort or concentration; complex and not easy to answer or solve; 'raised serious objections to the proposal'; 'the plan has a serious flaw' .
(adj.) of great consequence; 'marriage is a serious matter' .
(adj.) concerned with work or important matters rather than play or trivialities; 'a serious student of history'; 'a serious attempt to learn to ski'; 'gave me a serious look'; 'a serious young man'; 'are you serious or joking?'; 'Don't be so serious!' .
卡梅拉校对
编辑:奥马尔