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be independent from独立于……与之相对的是be dependent on依靠，依赖
2.The study also found that more than one-quarter of American adults have left the religion in which they were raised.
more than超过，多于
这里要注意的是与之相关的两个短语：
no more than not more than
no more than 不过,仅仅
例句：He is no more than a worker.
他仅仅是个工人。
It's no more than a mile to the shops.
离商业区不过一英里。
not more than 至多,不超过,不比...更...
例句：I'll stay here not more than three days.
我将待在这里最多不超过三天。
It is not more than thirty miles from London as he crow flies.
从这里到伦敦，直线距离至多30英里。
