Teflon seal
[化] 聚四氟乙烯密封(件)
🧩 词语组成解析
[化] 聚四氟乙烯\\n[医] 塔夫纶, 聚四氟乙烯(商品名,用于外科的塑料)
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
What time do you usually have supper?
你通常几点吃晚餐？
A dog will not howl if you beat him with a bone.
骨头打狗狗不叫。
I was angry because they were late.
我生气，因为他们迟了。