behove
/bɪˈhəʊv/( <美> behoove / -ˈhuːv/ )
verb
with obj.(it behoves someone to do something)
1- formal it is a duty or responsibility for someone to do something; it is incumbent on〈正式〉某人做某事是其职责所在（或义不容辞的责任）：
it behoves the House to assure itself that there is no conceivable alternative.
议会有责任搞清楚没有任何可以想象得到的替代办法。
1.1
- with negative it is appropriate or suitable; it befits适合：
it ill behoves Opposition Members constantly decry the sale of arms to friendly countries.
反对党议员们经常批评向友邦出售武器是不合适的。
词源
Old English behōfian, from behōf （see BEHOOF）.