Tetraethyl-succinic acid
[化] 四乙代丁二酸
🧩 词语组成解析
a. [化]四乙基的
[化]琥珀 的, 丁二酸的, 琥珀酸的
🗣️ 情景例句
He's been here for years, he should know the ins and outs of the job by now.
他在这里已经好多年，现在理应熟悉各方面的工作了。
To fall
坠下，掉下
Would you like me to demonstrate it for you?
要不要我来为你示范一下？