初中语文人教版诗歌:Good models must have great personalities and professional attitudes.怎么翻译？

Good models must have great personalities and professional attitudes.怎么翻译？ All good things must come to an end.什么意思? Being good is must; successful, however, is plus so you are must do it ,and answer me a good price 关于Hidden Markov Models liquid crystal models是什么意思 哪裏可以找得到电影<触不到的恋人>的插曲<Must Say Good-bye> You must have a good sleep after so far. A walk B a few C little D a little heuristic relevance models是什么意思啊? what is e-business models?