英语翻译that is not fit to the old people in this country 除了be f

英语翻译
that is not fit to the old people in this country 除了be fit to 还能用什么比较好?这里的fit要加ing么,这里我感到很奇怪,fit在这里是动词,但be fit to 又是固定搭配?
如果这是雅思作文中我想表达这句就是老年人不适合住在这个城市,复杂句能不能弄成 the chountry where is always filled with(是用with 还是in)the air pullotion that is not fit to the old prople who want to live a healthy life,for the fact that this city do not have a livable environment where has no greenery and no fresher air.我这从句是不是太多了点.这句话都有哪些错,求雅思大神指出.

fit' can be a noun,verb or adjective.In this case,you are using it as adjective describing the suitability of this place for seniors to live.NO 'ing'.
表达老年人不适合住在这个城市 = Elderly people are not suitable to live in this city.Or This city is not fit for elderlies to live in.
the chountry where is always filled with the air pullotion that is not fit to the old prople who want to live a healthy life,for the fact that this city do not have a livable environment where has no greenery and no fresher air.
suggestion:This city has serious pollution problem.It may not be an ideal city for seniors to live in.It is especially true for those seniors wish for a healthy life style and want to live in a city with more green space and better air quality.
Comment:you are too hung up on the word 'fit'.And watch for typing mistakes.
再问： 就是我是想通过这个简单句，用各种从句对其进行扩充，原意是the chountry is not fit to the old prople because the city do not have a livable environment。 而你的答案把他划分成了好几个句子，我只想用一句话作为论据去阐述这个论点。 上面那句复杂的是我自己扩充的，帮我改一下
再答： Ok, let's look at this sentence: the chountry is not fit to the old prople because the city do not have a livable environment.
You said 'the country', but later you wrote 'the city'. You have to make sure you are consistent in the object. I suggest you to use 'city' instead of 'country' since country is a much larger place and you may not have seen every corner of the country.
Let's continue. The city is not fit for some elderly people because this city has a serious pollution problem.
I suggest to use 'for' not 'to'. I also suggest not to use 'livable' because it is obvious that there are people living in this city. It is livable to them. Once you focus your objective to the elderlies, then you can expand into many paths to complete your discussion.
seldom people will write 'old people', use the word 'seniors' or 'elderlies' or 'elderly population' etc. Watch for these little things to set your writing apart from the rest.
'city' use 'does', not 'do
再问： 谢谢你啊。你是老师么？