what must be must be

what must be must be! what must be must be what it must be like must be We must be must be what must you do to be safe? what i care,must be happy,please! 英语：what 's should be?what's must be? must be happy must be young must be beautiful What can't be cured must be endured 英语翻译In order to be considered what must be provided? can be.must be区别