1.
Population Dynamics Based on Parity and its Sex Progression and its Applications;
孩次性别递进人口发展模型及孩次性别递进指标体系
2.
A woman who has given birth two or more times.
经产妇曾经生过两次或多次孩子的妇女
3.
Children in the class change over once a week
班上的孩子们每周变换一次座位。
4.
This is the third time for the boy to make lanterns with red paper.
这是这些孩子第三次用红纸做灯笼.
5.
P: I had only one abortion4 years ago, but no child.
四年前流产过一次，但没有孩子。
6.
The dentist inspects the children's teeth twice a year.
牙科医生每年给孩子们检查两次牙。
7.
The teacher just looks the other way whenever the children cause trouble.
每次孩子们捣乱,老师都装作没看见。
8.
She had to wake up several times a night when their baby was ill.
他们的孩子生病时,每夜她得醒来几次。
9.
A child's first experience of snow.
那个孩子对雪的初次体验
10.
The children were not to blame for the accident.
这次意外事故不应责怪这些孩子。
11.
The Boy was lost in a car crash.
那个男孩在一次撞车事故中丧生。
12.
The boys bragged that they had committed several burglaries.
那些男孩夸口说他们曾几次成功行窃。
13.
the sole object of her trip was to see her children.
她此次远行的唯一目的是探访孩子们。
14.
To worship with us at the First Communion of our child.
与我们一同参加孩子的首次圣餐仪式。
15.
To witness the occasion of our child's First Communion.
前来见证我们孩子的首次圣餐活动。
16.
We have to feed the baby twice nightly.
每天夜里我们得喂孩子两次。
17.
All mothers fear for their children when they first leave home.
孩子初次出门，母亲总要为之担心。
18.
How often do you talk to your kids in college?
你多长时间和上大学的孩子交谈一次？