reversal
n[C, U]
1 (instance of) making sth the opposite of what it was; turning around 反轉; 倒向; 顛倒
a dramatic reversal of her earlier decision 她的突然改變決定
a reversal of the usual procedures, tendencies, opinions 常規的顛倒、 趨勢的扭轉、 意見的轉變
(fig 比喻) His luck suffered a cruelreversal, ie change for the worse. 他遭逢厄運.
2 (instanceof) exchanging two positions, functions, etc (位置、 功能等的)轉換
role reversal/reversal of roles, eg between husband and wife when the husband looks after the house and children while the wife works 角色的轉換(如夫妻之間由男方料理家務、 照看小孩而女方工作).