Fish were a vital commodity in growing towns and cities, where food supplies were a constant concern.

在不断发展的城镇和城市里，鱼是一种重要的商品，那里的食物供应一直是人们关注的问题。

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Another vital commodity, oil, was on the way down.

另一种重要商品，石油，也在降价。

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Tomorrow, it will be the poor people of another country and some other vital commodity.

明天，就是另一个国家的穷人与另一种必不可少的日用品。

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Kudlow is also eloquent on why gold and commodity indexes are vital tools for sound money.

FORBES: Fact and Comment

These challenges include such acute development needs as installing piped drinking water for households, deploying high-quality irrigation systems with locally-accessible replacement parts, and using the latest mobile technologies for banking, sharing vital health data, paying salaries, and checking commodity prices.

WHITEHOUSE: Science and Technology an Indispensible Part of U.S. Development Policy Worldwide | The White House