Pentone
缬烯炔, 异戊烯炔
🗣️ 情景例句
You're quite the artist!
你还真像个艺术家。
The best fish smell when they are three days old.
鱼过三天后，再鲜也变臭。
She has been helping her husband for thirty years now.
她已经帮了她的丈夫30年了。