英语词汇“make a vain effort”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	make a vain effort
释义	make a vain effort 瞎费劲
随便看	screw-plug fuse screw plug gage screw plug gauge screw plugscrewed plug screw-plunger screwplunger injection molding screwplunger injection moulding screwpod screwposition repeatability screwposition sensor screw post screw-post screw potato planter screwpot injection end screw precision press screw pre-pla screw preplasticator screw preplasticizater screw preplasticization screwpreplasticizing injection machine screw pre-presser screwpress screw press screw-press screw press dehydrator