Delta bond
[化] δ键
🧩 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;
🗣️ 情景例句
You didn't put film in the camera, silly!
笨蛋，摄影机里没有放胶卷。
The contract contains basically all we have agreed upon during our negotiations.
合同将我们达成协议的内容基本上都写上了。
Oh, yes, I bought one, but I can't find it now.
噢，是，我买了票的，但现在找不见了！