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
Will you please take this upstairs, Susan?
麻烦你把这个带上去好吗， Susan？
No matter where you go you'll meet nice people.
无论你到哪里，你总会遇到好人。
Shall I keep him away from school?
我是否要他不去上学？