Dihydroxy tetrabasic acid
[化] 二羟四价酸; 二羟四碱价酸
🧩 词语组成解析
a. [化]四代的, 四元的, 四碱的
🗣️ 情景例句
I think something he can use is the best. A watch or something.
最好是实用的，像手表啦或什么的。
How's your sister?
你的嫂嫂好吗？
Four days after setting out, while the Titanic was sailing across the icy water of the North Atlantic,
“泰坦尼克”起航后的第4天，它正行驶在北大西洋冰冷的海面上。