虽然一些猫咀嚼草或其它植物，但是生物学家认为这些粗纤维仅是用来助消化并且提供很有限的营养。
Some cats munch on grass or other plants, but most biologists agree that such roughage serves only as a digestive aid and provides limited if any nutritional value.
而每天工作得很苦闷，剩下的时间用来咀嚼苦闷，只会陷入恶性循环，让生活更加糟糕。
Work every day very depressed, and the rest of the time to chew depressed, will fall into a vicious circle, make life worse.
而每天工作得很苦闷，剩下的时间用来咀嚼苦闷，只会陷入恶性循环，让生活更加糟糕。
Work every day very depressed, and the rest of the time to chew depressed, will fall into a vicious circle, make life worse.
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