Lip(type) seal
[化] 唇形密封
🧩 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
study for my math final.
温习数学 准备期末考试。
He was content that the thing had happened.
这事终于发生了，对此他是满意的。
Are you a teacher?
你是教师吗？