该例句来自维基百科，在CC BY-SA许可下可重复使用。 We haven't presented good retainers, paying just a depressing handful of shillings a day, or no matter what it may be. 来自 Hansard archive Fixed retainers are frequently applied to provide orthodontic retention and prevent relapse.[fourteen] They typically include a wire bonded with acid etch and composite into https://sandrag185svx6.homewikia.com/user