Acid attacks can happen as a result of plaque bacteria acting on the sugars in our diet, or as a direct result of the acids in food dissolving away the enamel on the surfaces of our teeth.

酸袭击可能发生，由于牙菌斑的细菌作用于我们饮食中的糖，或作为一个直接结果，酸溶解食物上溶掉了在我们牙齿表面上的珐琅。

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You need food, particularly sweet and sticky food, for the bacteria in your mouth to produce acids that will attack the tooth enamel (outer surface of the tooth).

你需要食物，特别是甜食和粘性食物，你口腔中的细菌就会利用它产酸并损害牙釉质（牙齿表面光亮的那一层）。

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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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But the company has discovered that its algae can be processed into other useful things: feed for fish farms, protein powders for food supplements and omega-3 fatty acids used in a variety of supplements and pharma products.

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Due next year:a line of stain-resistant food containers that eliminate the reddish tinge caused by the acids in tomato sauce.

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Martek Biosciences Corp. of Columbia, Md. uses algae to produce omega-3 fatty acids, which it sells as a supplement for food and infant formula.

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