B
back and forth
adv. 来来回回 : backward and forward
barely
adv.仅仅, 刚刚in a meager manner : PLAINLY几乎不能 SCARCELY, HARDLY
barter
n / v.物品交换, 交换 to trade or exchange by or as if by bartering
behold
vt.把...视为 to perceive through sight or apprehension : SEE
vi.看 used in the imperative especially to call attention
beneficial
adj.有益的, 受益的, [法律]有使用权的 conferring benefits

bind
v.绑, 约束 to confine, restrain, or restrict as if with bonds
镶边, 装订 to wrap around with something so as to enclose or cover
bizarre
adj.奇异的(指态度,容貌,款式等)
strikingly out of the ordinary : odd, extravagant, or eccentric in style or mode
blunder
v.跌跌撞撞地走to move unsteadily or confusedly
犯大错, 做错 to make a mistake through stupidity, ignorance, or carelessness
n.大错a gross error or mistake resulting usually from stupidity, ignorance, or carelessness
border
n.边界, 国界, 边, 边沿, 边境 an outer part or edge
vt.与...接壤, 接近 to touch at the edge or boundary : BOUND; v.接壤 to lie on the border
breach
n.违背, 破坏 infraction or violation of a law, obligation, tie, or standard
破裂, 裂口 a broken, ruptured, or torn condition or area b : a gap (as in a wall) made by battering
vt.打破, 突破 1. BREAK, VIOLATE ; 2 to make a breach in

bump (swell)
n. 肿块 a swelling of tissue
v.碰(伤), 撞(破) 1 : to strike or knock with force or violence 2 : to collide with
bush
n.矮树丛 a : SHRUB; especially : a low densely branched shrub
by degrees
adv. 逐渐地
by right, by rights
adv. 正当的