zài / guò qù / de / shè huì / lǐ / xǔ duō / jiào huā zi / zhǐ néng / kào / yán jiē / qǐ tǎo / lái / wéi chí / shēng huó在过去的社会里,许多叫花子只能靠沿街乞讨来维持生活。In the society of the past, many beggars could survive only by begging along the streets.