Nitroterephthalic acid
[化] 硝基对苯二酸
🧩 词语组成解析
🗣️ 情景例句
What are you talking about?
在说什么？
Button holes are very hard to sew.
要缝钮扣洞非常难。
Are there any hills in the picture?
画里面有山吗？