But have you heard about thirdhand smoke?

但是你“第三手烟”吗？

Thirdhand smoke? I'm afraid not. What is it then?

“第三手烟”？我恐怕，那，这指的是？

But now researchers are warning about what they call thirdhand smoke.

但是，如今，研究者对他们所称的第三手烟发出了警告。

When I got my period at 13 – such an acutely self-conscious age – I begged my mum for a bath each night, but I had to settle for a cold sink wash and, when the night came, the thirdhand bath water.

当我 13 岁来月经时——这是一自我意识非常强烈的年龄——我每晚都恳求妈妈给我洗澡，但我得接受冷水洗脸， 当夜幕降临时， 我还得用二手洗澡水。