behove
/bɪˈhəuv; bɪ`hov/ (US behoove/ bɪˈhu:v; bɪ`huv/) v [Tnt]
(used with it; not in the continuous tenses 与it连用, 不用於进行时态) (dated or fml 旧或文) be right or necessary for (sb) 对（某人）来说理应或必须
It behoves you (ie You ought) to be courteous at all times. 你应当时时刻刻注意礼节.
It ill behoves Anne (ie She ought not) to speak thus of her benefactor. 安不应该这样谈论她的恩人.