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
I couldn't wait.
我迫不及待啦。
Jeff was not pleased with his school grades.
杰夫不满意自己在学校的成绩。
The secretary worked late into the night, preparing a long speech for the president.
秘书工作到深夜，为总统准备发言稿。