Delta system
[电] 角接系统
🧩 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
Come on, you can tell me.
说吧，告诉我。
Children learn to creep ere they can go.
孩子要走路，先得学爬行。
It's a bit windy today, isn't it?
今天有点风，是不是？