"retainers" in Chinese (Simplified)

• 保持器
• 预付费（专业服务）

Definition

保持器是牙套取下后用于保持牙齿位置的装置，也指为确保专业人士（如律师）服务而预先支付的费用。

Usage Notes (Chinese (Simplified))

牙科中常用复数“保持器”，指矫正后佩戴的装置。商务中“预付费”多用于法律、咨询等专业服务。根据上下文判断是医疗还是支付含义。

Examples

The dentist gave me new retainers after I got my braces off.

牙医在我摘下牙套后给了我新的**保持器**。

Some lawyers work on a retainer and get paid every month.

有些律师按**预付费**方式每月获得报酬。

I lost my retainers and need replacements.

我把**保持器**弄丢了，需要换新的。

My orthodontist says if I don't wear my retainers at night, my teeth might shift back.

我的正畸医生说如果晚上不戴**保持器**，牙齿可能会移回原位。

We keep a lawyer on retainer in case we need legal help quickly.

我们为防急需法律帮助，长期给律师付**预付费**。

Don't forget to clean your retainers every day—they get dirty fast.

别忘了每天清洗你的**保持器**，它们很容易脏。