They have lost their homes and are forced to sleep in flimsy tents or tarp-covered lean-tos.
她们已经失去了自己的家园，被迫睡在肮脏的帐篷或者盖上油毡的披屋里；
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For example, our town of Maplewood, N.J. borders cities with high poverty rates and lots of problems, but there aren't people living in lean-tos in our backyard.