Even leading immigrant societies with superior resources, like the United States, Canada and Australia, took many generations to reach their present level of sophistication and maturity.是什么意思_Even leading immigrant societies with superior resources, like the United States, Canada and Australia, took many generations to reach their present level of sophistication and maturity.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句