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
Not a chance.
绝无可能。
Eagles fly alone,but sheep flock together.
鹰爱独飞羊爱群。
The most frightening thing of all was that not a sound could be heard.
最令人害怕的是到处没有一点声音。