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
Now, to check the list of things we need for the camping trip.
现在， 让我们检查一下露营旅行所需物品的清单吧。
This window is just as high as thsat one.
这扇窗户刚好和那扇一样高。
Have they ever been there before?
他们以前去过那儿吗？