You cannot appreciate happiness unless you have known sadness too.这句英文的意思?

If someone doesn't appreciat you presence make them appreciate your absence. cannot love you anymore cannot live without you Sorry ,I cannot forget you . Sorry ,I cannot forget you . what room you cannot enter You cannot disappear from may you cannot take these n____home You cannot hurry love是什么意思 I Cannot Love You 歌词 you cannot be serious是什么意思 you cannot save a blank You cannot hold onto yesterday （I cannot cry,cannot cry because of you. you cannot can a can that cannot be canned. I cannot leave you,like nison cannot leave the sunset.” you cannot lose what you never have Cannot