batten

v (phr v) batten on sb/sth (esp derog 尤作贬义) thrive or live well at the expense of sb/sth, or so as to injure sb/sth 损及某人[某事物]以自肥: She avoided having to work by battening on her rich relatives. 她仗著她那些有钱的亲戚而不必工作, 得以坐享清福.

bath-tub, bathe, bathed, bather, bathetic, bathing, bathing suit, bathing-cap, bathing-costume (also bathing-suit), bathos, bathrobe (also robe), bathroom, bathysphere, batik, batiste, batman, baton, bats, batsman, battalion, batter, battered, batteries, battering ram, battering-ram, battery, battery farm, battle, battle-cruiser, battle-cry, battleaxe, battledress, battlefield, battlefield, battleground, battlements, battleship, batty, bauble, baulk, bauxite,