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
It's an album of pictures of the United States:
是关于美国的
It is a sad house where the hen crows louder than the cock.
母鸡司晨家不兴。
We must get help.
我们得找人帮忙。