Walking is the best possible exercise. Habituate yourself to walk very far.
步行是最好的锻炼，试试习惯走远路吧。
Ever since I sprained my ankle I have been unable to walk very far, as I never know when it will give out.
自从我的足踝扭伤后，我就不能走远路，因为我这脚 随时 会 垮下来。
To my surprise No one on the streets, most people look very fat, house can\\; t more than four layers, walk very far to find a shop, the street is full of fast food restaurants sell hamburgers.
街上没有行人，大多数的人看上去很胖，房屋不会超过四层，走很远才能找到一家商店，街上全是快餐厅—卖汉堡的。
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