Diethyl succinate
[化] 丁二酸二乙酯
🧩 词语组成解析
a. [化]二乙基的
n. [化]琥珀酸盐(或酯)
🗣️ 情景例句
I can't understand a word anyone is saying.
我一句也不明白他们在说什么。
Tom reads newspapers in the afternoon.
汤姆下午读报。
That one is only 90 fen. That's cheap.
那支笔只有九毛钱，很便宜。