颜色都很单纯，但是尽其可能的明亮。
The colours were simple, but as bright as colours can possibly be.
单纯一个颜色的色釉杯，一般都是安全无毒的，可以放心使用。
Simple a color glazed glass, are generally safe non-toxic, can rest assured use.
葡萄干大小不一，表面情况复杂，单纯依靠颜色特征或用肉眼判断，均达不到较好的分级效果。
The raisin has different size and complicated surface, so it couldn't be graded well only by color and naked eyes.
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