Tetrolic acid
[化] 2-丁炔酸
🧩 词语组成解析
🗣️ 情景例句
I think you have got it, Richard.
我想你已完成了 ，Richard。
Kristy had believed her brother was right from the beginning.
克里斯蒂一开始便相信她哥哥是正确的。
The journalist immediately set out to obtain these important facts,
记者立即出发去核实这些重要的事实，