Periphery seal
[医] 周围封闭
🧩 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
You've changed a lot since I last saw you.
自从我上次见到你以来，你改变了很多。
Poor without debt is better than a prince.
穷人无债胜王子。
German is a more difficult language than English is.
德语比英语难学。