Delta acid
[化] δ酸; 2-萘酸-7-磺酸(染料中间体)
🧩 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
I waited for you for about a quarter of an hour.
我等了你差不多一刻钟。
Kill the goose that laid the golden egg.
杀鸡取蛋
I ask for what is mine by law!
我要求得到根据法律属于我的东西。