Julia had to subdue an urge to stroke his hair.

朱莉娅不得不克制住自己，不去抚摩他的头发。

《牛津词典》

I waited until Stanley paused, and put his hand up to stroke his hair back from his eyes - then I just took it.

我等待着，直到斯坦利暂时打住话头，举起手去拨开眼前的头发——于是我得到了这张照片。

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Studies suggest that anything smaller than ten micrometers in diameter (about a tenth the diameter of a human hair) is problematic, increasing the risk of asthma, heart disease, and stroke.

研究发现吸入任何直径小于十微米(大约人类头发的十分之一)的任何东西都是有问题的，可能会增加得哮喘的风险，心脏类疾病或者中风。

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