bob v (-bb-) 1 [I, Ipr, Ip] ~ (up anddown) move quickly up and down (esp on water) 上下疾動（尤指在水上） toy boats bobbing (up and down) on the waves 在水波上顛簸的玩具船. 2 (idm 習語) bob a curtsy (to sb) curtsy quickly (to sb) （向某人）行屈膝禮 The ballerina bobbed a curtsy (to the audience) before leaving the stage. 那個芭蕾舞女演員在下臺之前（向觀眾）行屈膝禮. 3 (phr v) bob up come to the surface quickly; (re-)appear suddenly 迅速浮起; 突然（再）出現 She dived below the surface, then bobbed up like a cork again a few seconds later. 她潛入水中, 幾秒鐘後像軟木塞一樣又浮了上來. (fig 比喻) He keeps bobbing up in the most unlikely places. 他總是在極不可能出現的地方突然出現. bob, n 1 quick movement down and up; jerk 上下的疾動; 急動: a bob of the head 點頭. 2 curtsy 屈膝禮. bob v (-bb-) [Tn] cut (a woman's hair) short so that it hangs loosely above the shoulders 將（女子的頭發）剪短至肩以上 have/wear one's hair bobbed 把頭發剪短[留]至肩以上. bob, n style of bobbed hair （女子）短發型（至肩以上） She wears her hair in a bob. 她留著短發. bob n (pl unchanged 復數不變) (infml 口) former British coin, the shilling, replaced by the 5p coin 先令（舊時英國硬幣, 後由5便士硬幣所代替）. bob n (idm 習語) bob's your `uncle (infml 口) (used to express the ease with which a task can be completed successfully 用以表示工作輕而易舉) To switch the oven on, turn the knob, and bob's your uncle! 把烤箱的電源接通, 轉動旋鈕, 完事大吉!