When you swallow food, it travels down your esophagus into your stomach. Here enzymes and acids go to work on the food, beginning the process of breaking the food down.

你吞下的食物会穿过食道进入胃里，胃里的各种酶和酸会分解食物，开始消化的过程。

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The twins were a huge amount of work in the beginning -- still are -- and when you're forced to make a decision on what to give up, you quickly see what you really love.

一开始，照料双胞胎的工作量非常大——现在也仍然如此——而你一旦被迫要决定放弃哪些东西的时候，就会立刻明白自己真正喜欢的是什么。

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We had a bit of a problem with the left-front tyre which was beginning to grain, but we were very fast when it started to work and easily caught up the others.

赛车的左前胎有点问题，橡胶颗粒开始脱落，但是当轮胎开始运作时赛车依然很快并且很容易赶上别的赛车。

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None of the resting workers yet know when they'll be going back to work, and some are now beginning to worry that their livelihoods may be sacrificed in China's bid to clean up its environment before it is too late.

NPR: Some Economies Suffer As Beijing Cleans Up Air

His reputation for arrogance in these and later jobs made it hard for him to find work in the government at the beginning of the second world war, when he was already in his 60s.

ECONOMIST: In Sir William’s shadow | The