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
Don't be too sure.
别那么肯定。
Fire that's closest kept burns most of all.
关得最紧的火，燃烧得最炽烈。
No, I haven't. I read about it in the newspaper. It's also about the man who wanted to end slavery -- Abraham Lincoln.
不，还没有。我在报纸上读过有关的情况。它还讲述了那个想结束奴隶制度的人，即亚伯拉罕·林肯的情况。