Examine the firmness and color of fresh pears. Being firm to touch is one of the many indicators of freshness.

查看梨的硬度和颜色。摸起来硬说明它可能是新鲜的。

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Total volatile basic nitrogen and aerobic bacterial count of the sample were measured simultaneously as the standard indicators of pork freshness.

同时采用挥发性盐基氮和微生物菌落总数检测实验进行对比分析。

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When shopping for Swiss chard, look for crisp, shiny leaves and bright stems, two indicators of freshness.

WSJ: Amaryll Schwertner's Farro With Braised Greens, Pistachios and Ricotta | Slow Food Fast