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
if that's what you mean.
是这个意思吧。
Would you like to go for a walk?
你想去散步吗？
Chairs and tables went flying into the arcade.
家具，椅子，桌子飞落花流水在拱廊街上。