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'll settle for an A in my photography course.
我只要摄影课能得A就满足了。
Dexterity comes by experience.
熟练来自经验。
Eleven. And we play the game with a ball like this. Is the game popular in the USA?
11名。而且我们用这样的球比赛。这种比赛在美国受欢迎吗？