政府仍然是福利的主要提供者。
教育已经成为我们的社会里个人机会的主要提供者。
Education has become the main provider of individual opportunity in our society.
个旧组是矿床的主要赋矿岩系，但不是成矿物源的主要提供者。
The Gejiu strata formation is the mainly mineral-hosting rock series, but not the main source for mineralization.
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