New Words：

diaper [ˈdaɪpər] n. 尿布;(婴儿的)尿片

Sample Sentences：

Their diapers probably need to be changed.
He never changed her diapers, never bathed her.

New Words：

minus ['maɪnəs] 减；减去；零下

Sample Sentences：

Seven minus three is four.
How much is ten minus one. Ten minus one is nine.
What is five plus three? What is five minus three?

New Words：

plus [plʌs] 加

Sample Sentences：

Two plus five is seven.
How much is four plus two? Four plus two is six.

New Words：

chart [tʃɑːrt] n. 图表；海图；表格

Sample Sentences：

The nurse hung a chart at the foot of the bed.
Do you know the ten new songs at the top of the chart?
Every day a different name was placed at the head of the chart.

hang [hæŋ] v.悬挂；吊；垂下；垂落
hung [hʌŋ] v.hang的过去分词和过去式

New Words：

truth [truːθ] n. 真相;实情;事实

Sample Sentences：

Do you think she's telling the truth?

I don't know if he's telling the truth or not.

I don't think you are telling me the whole truth about what happened.