Pentahydroxy dibasic acid
[化] 五羟二价酸; 五羟二碱价酸
🧩 词语组成解析
a. 二元的\\n[化] 二元的; 二价的; 二碱价的; 二取代的
🗣️ 情景例句
Table tennis, I suppose. That's almost our national game. People from all walks play it.
我想应该是乒乓球吧。它几乎是全国性运动，各行各业的人都打。
The shoes are worn-out.
这鞋已经不能穿了。
Had he worked harder, he would have gotten though the exams.
如果他努力了的话，他就会通过考试的。