John bargained with the salesman over the price of the used car.辆二手车的价格与销售员讨价还价。

The new car I bought on sale was quite a bargain.我在打折时买的那辆新车真是划算。

bark n.树皮

The bark of a birch tree is black and white.桦树的树皮是黑色和白色的。

They heard a dog barking outside.他们听到外面有狗叫。

barn n.谷仓；畜棚

Pigs，chickens，sheep, and cows are kept in the barn.牲口棚里养着猪、鸡、羊、牛。

barrier n.屏障，障碍；栅栏

A tree fell across the road and made a barrier to traffic. 一棵树倒在路中间，造成了交通堵塞。

baseball n.棒球；棒球运动

Baseball is a very popular sport in America.在美国，棒球是一项非常受欢迎的运动。

bathe v•沐浴，洗

We wash our hair and bathe regularly.我们经常洗头和洗澡。

bay n.海湾

Our favorite fishing spot is in the bay.我们最喜欢的钓鱼地点是海湾。

beam n•①大梁②(光线的）束，柱

One of the Olympic sports for gymnastics is to balance on two beams.奥运会体操比赛有一个项目是要在双杠上保持平衡。

We could just pick out the path in the weak beam of the torch.我们只能在火把微弱的光亮下辨认路线。

bear vt.①负担，支撑②具有，带有③生产，生育

The camels bear their cargo across the desert without complaint.骆驼任劳任怨地驮着货物穿越沙漠。

The coins the date and the queen’s head on them.硬币上带有日期和女王的头像。

Mary has borne three healthy children.玛明生了三个健康的孩子。

behalf n.代表，作为…的代表（on ~ of)

The actor’s agent accepted the award on behalf of him.那位演员的经纪人代他领了奖。