Methylenecyclopentadiene
富烯
🗣️ 情景例句
but I'm taking a little time to smell the flowers.
我正利用一点时间轻松一下。
Knowledge without practice makes but half an artist.
只有知识而无实践，只能造就半瓢水的艺术家。
He threatened to call the police.
威胁说要去叫警察。