yín háng chuāng kǒu de yī jù “wǒ xiǎng huàn yī diǎn líng qián ”，bāng tā jiě jué le xiǎo má fan

银行窗口的一句“我想换一点零钱”，帮他解决了小麻烦。

A bank teller's simple request, 'I'd like to change some small bills,' helped him solve a minor problem.