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
Donald passed away a couple of years ago.
Donald几年前去世了。
We feel product quality is high indeed.
我们认为产品的质量的确很高。
Shall I keep him away from school?
我是否要他不去上学？