Delta seal
[化] 三角密封
🧩 词语组成解析
delta
['deltə]
n. 希腊语字母表第四字母δ;（河流的）三角洲;[数]变量增量;
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
Let's go out.
一起出去玩儿吧。
Still full
还很饱
The police had a difficult time, but they were most amused.
警察虽然吃了苦头，但他们还是感到很有趣。