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
The world could be heading for an economic recession.
世界也许正在走向经济衰退。
Whatever it is, I need this computer to work.
不管是什么问题，我要求把这台计算机修好。
Once you have done this, you will quickly become a useful member of the teazm.
一旦你这样做了，你很快就会成为工作班子里有用的员。