Benzidine-disulfonic acid
[机] 联苯氨二磺酸
🧩 词语组成解析
n. [化]对二氨基联苯
🗣️ 情景例句
You can't take her promises seriously, she never keeps her word.
她答应的事不用当真，她说话从来不算数。
What time does the first train to Boston leave?
第一班去波士顿的列车什么时间开出呢？
In the beginning they used to carve Chinese characters on stones to record important dates in history.
开始时，他们常把汉字刻在石头上，记载历史上重要的日期。