慢速英语:加工食品有什么不好？

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bar – n. a solid piece of something that is shaped like a rectangle

chew – v. to use your teeth to cut food into small pieces before you swallow it

fiber – n. plant material that cannot be digested but that helps you to digest other food

packaged – adj. something that comes in a container

yogurt – n. a food that is made when bacteria are added to milk and that is often flavored and chilled