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
I'm working my way through college.
我靠勤工俭学上大学。
Open your books and turn to page 20.
打开书，翻到第20页。
I decided to take her by train.
我决定带她乘火车去。