21. back He slipped and fell on his back.他仰天滑到。 22. balance Don’ t get excited; keep your balance.不要冲动,保持冷静。 23. base A naval base is located at Wei hai.威海有个海军基地。 24. behavior Tom won a prize for good behavior at school.汤姆在学校里得到品行优良奖 25. belief He has lost his belief in god.他已不相信上帝。 26. birth That baby weighed seven pounds at birth.那婴儿生下来七磅重。 27. bit He ate every bit of his dinner.他把他的晚餐吃得光光。 She’ s feeling a bit tired.她觉得有点疲倦, He doesn’ t care a bit.他一点也不在乎 28. bite His face was covered with insect bites.他满脸都是蚊虫咬伤 haven’ t had a bite since morning.我从早晨到现在一口东西都未吃过。 There’ s a bite in the air this morning.今天早晨有点寒风刺骨 He gave his blood to help his sister.他输血给他的妹妹以救她。 His blood is up.他发脾气了 His blood ran cold.他吓得魂不附体。 Let' s go for a blow.让我们到户外吹吹风 31. body His body was brought back to England for burial.他的遗体被运回英国埋葬 s a nice old body.她是一个很好的老人。 get down to brass tacks开门见山21. back He slipped and fell on his back. 他仰天滑到。 22. balance Don’t get excited; keep your balance. 不要冲动，保持冷静。 23. base A naval base is located at Wei Hai. 威海有个海军基地。 24. behavior Tom won a prize for good behavior at school. 汤姆在学校里得到品行优良奖。 25. belief He has lost his belief in God. 他已不相信上帝。 26. birth That baby weighed seven pounds at birth. 那婴儿生下来七磅重。 27. bit He ate every bit of his dinner. 他把他的晚餐吃得光光。 She’s feeling a bit tired. 她觉得有点疲倦。 He doesn’t care a bit. 他一点也不在乎。 28. bite His face was covered with insect bites. 他满脸都是蚊虫咬伤。 I haven’t had a bite since morning. 我从早晨到现在一口东西都未吃过。 There’s a bite in the air this morning. 今天早晨有点寒风刺骨。 29. blood He gave his blood to help his sister. 他输血给他的妹妹以救她。 His blood is up. 他发脾气了。 His blood ran cold. 他吓得魂不附体。 30. blow Let’s go for a blow. 让我们到户外吹吹风。 31. body His body was brought back to England for burial. 他的遗体被运回英国埋葬。 She’s a nice old body. 她是一个很好的老人。 32. brass get down to brass tacks 开门见山