购买之前做好功课。查看竞争者和消费者评价，来确保你被卖予的东西值得你为之所付出的。
Do your homework before buying. Check competitors and consumer reviews to make sure that what you're being sold is worth what you're paying for it.
一旦确认了竞争者，下一步就是分析怎样竞争。在评价自己的策略时知道竞争对手在做什么是非常重要的。
Once competitors have been identified, the next step is to analyze how they compete. It's essential to understand what competitors are doing when honing your own strategy.
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