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
I'm very sorry.
非常抱歉。
Can I count on your help?
我能仰仗你的协助吗？
'The fire broke out in the basement.I went down immediately,of course,
“地下室突然着火，我当然马上下去了。