Today the workers went to work on foot,maybe their bus is out of o_____.
问题描述：
Today the workers went to work on foot,maybe their bus is out of o_____.
答
oil
当然是没油了
答
out of order:出毛病，出故障
今天工人们步行上班，可能他们的班车出故障了
答
Today the workers went to work on foot,maybe their bus is out of order.