bud /bʌd/ I. n. ［c］ & ［u］ 叶芽，花蕾：in bud 发芽，含苞待放 The new buds begin to appear in the spring, when plants come into bud. 在植物进入抽芽期的春天，新芽就开始吐出来了。‖II.vi. 发芽，萌芽：The trees are budding and spring is near. 树木在萌芽，春天即将来临。