下面的这20个托福口语必备词汇是大家在托福口语考试中经常会用到的词汇，这些词汇中有单词也有词组，都给出了例句加以解释，希望可以帮助到大家的口语考试。

1. back

He slipped and fell on his back. 他仰天滑到。

2. balance

Don‘t get excited and keep your balance. 不要冲动，保持冷静。

3. base

A naval base is located at Wei Hai. 威海有个海军基地。

4. behavior

Tom won a prize for good behavior at school. 汤姆在学校里得到品行优良奖。

5. belief

He has lost his belief in God. 他已不相信上帝。

6. birth

That baby weighed seven pounds at birth. 那婴儿生下来七磅重。

7. 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。

8. 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。

9. 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。

10. blow

Let‘s go for a blow. 让我们到户外吹吹风。

11. 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。

12. brass

get down to brass tacks 开门见山

13. bread

I‘m only doing it for the bread. 我纯粹是为了钱才做那件事。

14. breath

They are not be mentioned in the same breath. 他们不可同日而语。

There wasn‘t a breath of air/wind. 一丝微风都没有。

15. brother

He is my brother. 他是我的兄弟。

16. building

buidling materials 建筑材料building site 建筑工地

17. burn

He died of the burns he received in the fire. 他死于火灾时所受到的灼伤。

18. burst

a burst of applause 一阵喝彩

19. business

He is in business of himself. 他自行经商。

That‘s no business of yours. 那事与你无关。

I‘m sick of the whole business. 我对这事情实在感到厌烦。

20. butter

butter will not melt in sb‘s mouth 一本正经的样子