It also adds helpful enzymes found in the foods we eat: enzymes that can help our digestive system break down carbs, fats, protein, and dairy products.

产品同时添加食物中所含的酵素，从而帮助消化系统消化碳水化合物，脂肪，蛋白质和奶制品。

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The earthquake made the communication system break down.

地震使通信系统瘫痪了。

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Democracy is changing before our eyes - more elected posts, more voting systems, more choice as the two-party system continues to break down and, above all other things - more unpredictable than ever.

BBC: Elections - Reading the runes

Every month it appears more likely that the pay-TV system will break down.

ECONOMIST: The future of pay-television

In addition, he said, the background-check system tends to break down on weekends, when gun shows often swell traffic.

WSJ: Systemic Gaps Hinder Background Checks for Gun Purchases