Retainer seal
[化] 护圈密封
🧩 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;
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
🗣️ 情景例句
Keep the change.
别找零头了。
What a boring movie it is!
多么无聊的一场电影啊。
I think you need a number 47. The bus stop is along that road, on the right.
我想你需乘47路车。