originally an apple from the tree of knowledge of good and evil in the Garden of Eden; it is now used to refer to anything that is tempting but dangerous (as sexuality)
例句
用作名词 (n.)
Her cheek was still forbidden fruit to him. 她的面颊,对他依然是禁果。
Adam and Even committed the original sin when they ate the forbidden fruit in the Garden of Eden. 亚当和夏娃在伊甸园中吃了禁果后,产生了原罪。