英语单词表示课程“subject”和“course”,有什么区别?答:二者均为值得,worth后接doing,worthy后接to be done, of being doneIt is worth visiting. = It's worthy to be visited. = It's worthy of being visited.99. bad, badlybad形容词,badly副词,不好,但与need, want, require连用为"很,非常" go bad I need the book badly.100. before long, long...