rat race

详细解释:【电】 环形导波管

英语解释：

名词 rat race:

an exhausting routine that leaves no time for relaxation

例句：

After Nigel left his academic post and went into business, it took him quite a while adjust to the rat race.奈杰尔弃学从商后，过了很长时期才使他适应于那种竞争激烈的环境。