One day, an old cow broke away from her halter and got into the middle of the only road in the desert, on which the water trucks had to pass.

• 一天,一只老牛挣脱缰绳,闯到运水车必经的公路上,这是沙漠里唯一的公路。时间一分一秒地过去,人们不知道老牛究竟怎么了。