n.
[牙科]牙架.sp.（律师、顾问等的）聘金retainer
Noun
a fee charged in advance to retain the services of someone
a person working in the service of another (especially in the household)
a dental appliance that holds teeth (or a prosthesis) in position after orthodontic treatment
retainer例句
用作名词(n.)
The retainer in his family was very honest.
他家里的那位仆人很诚实。
retainer近义词
deposit down payment fee payment consideration servant