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
Okay. Thank you.
好的，谢谢。
It was so beautiful it took my breath away.
它美得使我目瞪口呆。
Refuse politely any cold drink from an unknown source.
应谢绝任何不明来源的冷饮。