The house is not really suitable for a large family.
这所房子并不适合大家庭居住。
suitable place/time etc to do something
a suitable place to rear young children
适合养育幼儿的地方
suitable to use/be shown etc
These crayons are not suitable to use in very hot weather.
这些彩色蜡笔不适合在非常炎热的天气使用。
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In everyday English, people usually say that someone or something is the right person or thing for them, instead of using suitable: 在日常英语中,人们表达某人或某物适合某人时,通常说 the right person/thing ,而不用 suitable