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
6:00 sharp, please.
请6点整叫我。
It seems he's disappointed.
看起来他好像很失望。
I haven't met him yet.
我还没见过他。