这本书是几百年前写的。
据说这条山谷是几百年前被急流冲刷而成的。
He is said to have been working in this factory for more than twenty years.
如果不是几千年前，那么可能是在几百年前，我们中国人就有了值得学习的典范了。
Maybe hundred years ago, if not thousand years, we Chinese have role models to fellow.
如果不是几千年前，那么可能是在几百年前，我们中国人就有了值得学习的典范了。
Maybe hundred years ago, if not thousand years, we Chinese have role models to fellow.
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