Rotary seal
[化] 转动密封
🧩 词语组成解析
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
Ladies and gentlemen,
各位女士 各位先生
The restaurant is on the second floor.
那餐厅在二楼。
Please give us your proposal if you're ready for that.
如果你们愿意做合资经营，请提出你的方案。