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A study into the amount of urine in swimming pools has revealed just how high the levels are - and the results are NOT pretty. 近日一项研究揭露了泳池中的尿液含量到底有多高，而其结果可谓不甚理想。 Researchers developed a test to measure the amount of urine in the water and took more than 250 samples from 31 pools and hot tubs in two Canadian cities. 研究人员设计出了一种检验水中尿液含量的方法：从加拿大两个城市里的31个游泳池和公共热水浴池中采集250多份样本，然后加以检验。 | 
