The city's janitors went on strike, leaving thousands of workers to straighten their own offices up and empty their own trash.该市的清洁工人都罢工了，弄得数千员工只好自己打扫办公室和倒垃圾。Kennedy mischievously suggested that professors ought to trade jobs for a time with janitors…肯尼迪调皮地建议教授和看门人互换一段时间工作。