Researchers then went a step further to test the extent to which the quality of the wrapping paper had an effect on the recipient's perception of the gift.
研究人员又进一步测试了包装纸的质量会多大程度地影响收礼者对礼物的感觉。
The hygienic condition of food wrapping paper directly concerns the quality and safety of the wrapped food.
食品包装用纸卫生与否，直接关系到被包装食品的卫生质量和安全。
The hygienic condition of food wrapping paper directly concerns the quality and safety of the wrapped food.
食品包装用纸卫生与否，直接关系到被包装食品的卫生质量和安全。
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