This is why whey pools up in the yogurt container after you scoop out the first spoonful, and why manufacturers add stabilizers.

这就是为什么当你舀出第一勺后在酸奶杯中会有水满起来，也是为什么制造商们要添加稳定剂的原因。

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Tsinghua University first made swimming a requirement in 1919 but later gave it up because the number of students became too large and there were not enough swimming pools in the school for them to learn swimming.

1919年，清华大学首次规定学生必须游泳，但后来由于学生人数过多，学校也没有足够的游泳池供学生学习游泳而放弃了这一规定。

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Banks have long traded directly with each other through their "block desks", but the use of pools enhances this and technology makes it easier for the pools to link up.

银行之间通过“block desk”直接交易由来已久，但“黑池”的应用提高了效率，技术使得“池子”之间的连接更加容易。

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Last year,up to 37 million Americans paid money to join bracket pools.

VOA: standard.2009.03.25

Its manufacturer recommends it for pools up to 25 feet by 50 feet, and it can scrub a pool that big in an hour.

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With Pools gearing up for their second season in the third tier of the game, Butterworth feels the extra challenge of playing at stadiums such as Elland Road and the Walkers Stadium will be an incentive for the players.

BBC: Ian Butterworth

With insufficient numbers of healthy people (the young) to balance the insurance pools, the pools have filled up with people more likely to be sick, putting the pools way out of balance.

FORBES: Ron Paul Pushes Financial Crack To America's Working Youth