Ethanedioic acid
n. 乙二酸; 草酸
🧩 词语组成解析
🗣️ 情景例句
Hello, Susan.
喂 Susan。
Wisdom is a good purchase though we pay dear for it .
为了求知识，代价虽高也值得。
The factory has been there for several years.
这家工厂在那儿已有好几年了。