At the individual level, a single cell isn't particularly important.
在个体层面，一个单个的细胞不是特别重要。
That's because "measuring ... firing at the level of a single cell, a neuron, is difficult to extend to human behavior, which is highly complex."
那是因为“数量，向一个细胞，一个神经元发射的等级，是难以蔓延到复杂得多的人类行为的。
An explosive chemical technique can now be used to identify individual molecules in biological samples, down to the single-cell level.
一项爆炸化学技术现在可被用于鉴定生物样品中的个别分子，其分析程度可达单个细胞水平。
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