The village encountered a new problem two decades later as the environment became heavily polluted by chemical plants and mine refineries builtin 1990s.
20年后,这个村庄遇到了一个新的问题,因为20世纪90年代建成的化工厂和炼油厂严重污染了环境。
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In most cases, finding a requirement problemin a requirements review is far cheaper than waiting until the application is designed, coded, built, and in testing to find the problem.