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
Richard is right.
Richard是对的。
Do you like cats?
你喜欢猫？
The most frightening thing of all was that not a sound could be heard.
最令人害怕的是到处没有一点声音。