Vinylidene
n. [有化] 亚乙烯基；乙烯叉
🗣️ 情景例句
She worried constantly.
她经常烦恼。
Every pleasure has a pain.
乐中必有苦。
the chance of playing a game of football or baseball on Saturday afternoon.
让他们在星期六下午再踢足球或打垒球