本集内容

Are you cleaning your water bottle enough?

你的喝水瓶洗得够勤吗？

文字稿

（Source: BBC Future）
Have you ever wondered if drinking from your water bottle makes it dirty? The short answer is yes.

（来源：BBC Future）
你有没有想过用你的水瓶喝水会让它变脏？简单来说确实如此。

（Source: H. Liu and Q. Liu, 2017, Annals of Civil and Environmental Engineering）
With each sip from your water bottle, you introduce more bacteria to it, which can then multiply by the millions within a day.

（来源：H. Liu and Q. Liu, 2017, Annals of Civil and Environmental Engineering）
每从水瓶里喝一口水，你就会向水瓶中带入更多的细菌，这些细菌在一天内会繁殖数百万。

Dr Primrose Freestone from the University of Leicester warns that using the same water bottle for different kinds of drinks will also stimulate the growth of microbes.

莱斯特大学的普里姆罗斯·弗利斯通博士提醒称，用同一个水瓶装不同种类的饮品也会促进微生物的繁殖。

Even when you leave it aside, the bacteria will still grow over time if there's water in the bottle.

即使你把水瓶放在一边不使用它，细菌也会随着时间逐渐繁殖，只要水瓶中有水。

（Source: The University of Alabama at Birmingham）
Although most microbes aren't harmful to humans, some can cause infections or trigger symptoms. For example, mould found in water bottles can lead to respiratory problems, especially with people who have allergies.

（来源：阿拉巴马大学伯明翰分校）
虽然大多数微生物对人类无害，但一些微生物会导致感染或引发病征。比如，水瓶中发现的霉菌可能引发呼吸系统问题，尤其是对于有过敏症状的人来说。

So, how can we take care of our water bottles?

那么，我们应该如何清洁自己的水瓶呢？

Experts suggest that we should clean our bottles several times a week if we use them regularly.

专家建议我们应该每周都清洗几次水瓶，如果我们经常使用它的话。

For the best result, use hot water and washing-up liquid when cleaning your bottle. Then, use a brush to clean the inside of the bottle, and leave it for ten minutes before rinsing it with hot water again. Lastly, allow the bottle to air-dry instead of wiping away the water residue.

要达到最佳的清洗效果，应使用热水和洗洁精清洗水瓶。先用刷子清洁瓶子内部，接着静置十分钟，然后再用热水冲净。最后，让水瓶自然晾干而不是擦干残留的积水。

And remember, if your water bottle starts to smell bad even after washing, it might be a good idea to switch it for a new one.

还要记住的是，如果你的水瓶在清洗之后依然闻起来有异味，那换个新水壶不失为一个好主意。