n.（尤指服务多年的）仆人( retainer的名词复数 )；（为保留租房而付的）租房订金；（聘请律师等的）预付费用；牙齿固位体 英英释义： retainern.a fee charged in advance to retain the services of someone同义词：considerationa person working in the service of another (especially in the household)同义词：servanta dental applian