Glutaconate
戊烯二酸
🗣️ 情景例句
What's wrong with him?
他怎么啦？
My overcoat is red.
我的大衣是红色的。
The operation, which lasted for over four hours, proved to be very difficult because of the hard resin which covered the skin.
手术持续了4个多小时，非常难做，因为皮肤上覆盖着一层硬硬的树脂。