Recirculated seal
[化] 循环式密封
🧩 词语组成解析
a. 再循环的\\nv. 再循环（recirculate的过去式和过去分词）
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
Well, at one o'clock
嗯， 一点钟
We should keep them informed of what is going on here.
我们应该让他们知道这里发生的事情。[分词作定语]
When the balloon was over the station, the pilot saw one of the men taking photographs.
当气球飞临基地上空时，飞行员看见有一个人在拍照。