what is new must be good; what is old is probably bad 用这一句话写一段话 字数不限

这句话是什么意思?我给翻译成"喜新厌旧"
Many people have an idea of "What is new must be good;what is old is probably bad",these people are not the men who are loyal to his wives.So if you are a woman,do remember that find a man who are faithful.Cause there are too many men whose tongue is so sweet,and they will make wonderful promise to you ,but to the end ,you'll find that it is just a hot air or a bubble which will burst nowhere in the air.

the stuff which when it is new must be good and when it is old probably bad,is the water