Valerolactone
戊内酯
🗣️ 情景例句
I'm most grateful to you for taking so much trouble to explain the best way of getting there.
你不厌其烦地给我解释去那里的最佳途径，我对些深表感激。
When an opportunity is neglected, it never comes back to you.
机不可失，时不再来。
The assistant asked him to leave, but Dickie paid no attention to him and requested to see the manager.
店员让迪基走开，他置之不理，并要求见经理。