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Ma Dong squatted down to take a look. How could he possibly get on? The chain was stuck, so he couldn't get it out. "Big Sis Dou, since we can't get this chain out, I think we should wait until the next day for the bicycle repairman."

"Ya, that won't do!" Dou Chengqin said, "My stall has always been selling food. It has a lot of regular customers!"

Dou Chengqin told Ma Dong that every day