Extracoronal retainer
[医] 冠外固位体
🧩 词语组成解析
retainer
[ri'teinə]
n. [机]承盘，挡板;家臣，侍从;[牙科]牙架;保持着;
🗣️ 情景例句
I never bother servicing my own car, it's too much trouble.
我从来都不自己修车的，麻烦死了。
I usually get up at 8 o'clock.
我通常8点起床。
The next day he walked through the wood again.
第二天，他再次穿过树林。