Rolex watch initial also is such, keep gold as selling points, no more than is to tell the buyers, the watch good worth, even shell were of gold.

劳力士表的初期也是这样，把黄金作为卖点，无非是告诉买家，这块表好值钱，连壳都是金子的。

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In particular, watch out for short date ranges. It's generally not a good idea to make keyword changes on the basis of a few days worth of data.

特别是，提防短的日期范围。这通常不是一个好主意，就对关键字进行更改，根据少数几天的数据。

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