Undecyne dicarboxylic acid
[化] 十一碳炔二羧酸; 十三碳炔二酸; 十三碳一炔二酸
🧩 词语组成解析
十一炔
[化]二羧基的
🗣️ 情景例句
We haven't heard from him for weeks but we're still hoping for a letter.
我们已经有几个星期没有他的消息，但仍然盼望着他的来信。
It's on of his favorite relaxations.
这是他最喜欢的消遣之一。
An advertisement which begins with the magic word FREE can rarely go wrong.
凡是用“免费”这个神奇的词开头的广告很少会失败的。