Cryogenic seal
[化] 低温密封
🧩 词语组成解析
a. 低温学的\\n[医] 降温的, 产低温的
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
but we have to get going
但我们必须走了，
What were you doing this time last year?
去年这时候你在干什么？
What do you do for relaxation?
你做什么消遣？