Crotonate
巴豆酸酯, 丁烯酸酯
??? 情景例句
I prepared lamb chops,
我準備了羊肉，
You've got to do something.
你一定要想辦法。
Though the costume consisted only of a sheet, it was very effective.
盡管化裝服僅由一個被單制成，卻十分逼真。