檢視劳而无功的原始碼


[[File:U=2274929569,2770201940&fm=26&gp=0.jpg|缩略图|400px|[https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=劳而无功&step_word=&hs=0&pn=2&spn=0&di=71390&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=2&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=-1&cs=2274929569%2C2770201940&os=443105304%2C2566682519&simid=3371726107%2C362421636&adpicid=0&lpn=0&ln=665&fr=&fmq=1586509750381_R&fm=result&ic=&s=undefined&hd=&latest=&copyright=&se=&sme=&tab=0&width=&height=&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=http%3A%2F%2Fimage2.135editor.com%2Fcache%2Fremote%2FaHR0cHM6Ly9tbWJpei5xbG9nby5jbi9tbWJpel9qcGcvRGhLUGVIRkk1SGhQM2ljWmpid2FWREtHRnc4RVB3YTF4aWE1VFhVQVFrQnFrZUQ2QzJIQmljR1dybHBMb1FZSng1aWNOYXNVME9mUmljNVJxYmtEVD&fromurl=ippr_z2C%24qAzdH3FAzdH3Fks52_z%26e3Bftgw_z%26e3Bv54_z%26e3BvgAzdH3FfAzdH3Fks52_8cjldjj01a8adxw0b_z%26e3Bip4s&gsm=3&rpstart=0&rpnum=0&islist=&querylist=&force=undefined 原圖鏈接][http://blog.sina.com.cn/s/blog_15e92ee7d0102xa78.html 来自星空clx的博客]]]
'''劳而无功 ：'''[ láo ér wú gōng ] 。花费了力气，却没有收到成效。