空气敏感是一个化学术语，用以描述一些能够和空气组分发生化学反应的物质，一般是和氧气、水发生反应，亦可以是和其他组分，比如二氧化碳、一氧化碳和氮气发生反应。
但是叔膦配体价格昂贵，有毒以及对水、空气敏感等问题，限制了它在有机合成中的应用。
However, many of the tert-phosphine ligands are sensitive to air, and they are also expensive, toxic, and unrecoverable, which result in significant limitations on their synthetic applications.
如此敏感的一对鼻孔，居然不曾对饮用水中的砷含量或是空气中的悬浮物做出任何反应。
Sensitive as they were, they were unimpressed by levels of arsenic in drinking water or particulates in the air.
它们变得很敏感，当人们从身旁经过的时候你甚至就能感觉到空气的流动。
They'll be so tender you'll be able to feel the air move when people walk by.
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