Adjustable retainer
[机] 可调整扣件
🧩 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
Great job!
干得好，干得妙！
He is eating a little.
他只吃了一点儿。
All the bees that had been at the nearby place were doing the circling dance.
所有在近处点的蜜蜂在跳一种完全不同的舞蹈，一种摇摆舞。