by degrees什么意思解释

The crowd in Robinson's Coffee-House was thinning, but only by degrees.鲁宾逊咖啡屋里的人正在变少，但也只是渐少而已。By degrees the quality gave up going , and the fair, of course, became disreputable.上流人渐渐不去那儿了, 当然集市就变得破旧不堪了.The truth wa...

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