研究人员分析了53对父母及其子女在家中的日常活动的录像，在孩子54个月大时接受评估，结果发现在26至46个月大时玩拼图的孩子拥有更好的空间技能。
The researchers analyzed video recordings of 53 child-parent pairs during everyday activities at home and found children who play with puzzles between 26 and 46 months of age have better spatial skills when assessed at 54 months of age.
十二周大时，婴儿会微笑，发出类似元音的声音。
眼科医生建议孩子应在六个月大时进行第一次眼部检查。
Eye doctors recommend that a child's first eye exam be at the age of six months old.
胎儿在三个月大时才形成指纹。
小狒狒三个月大时就可以骑在妈妈背上了。
Once they're three months old, geladas ride their mothers jockey-style.
当数据集相当大时，这当然要花一些时间。
This will certainly take some time as the data set is fairly large. You must also have sufficient disk space to hold the data throughout the import process.
通常在婴儿期从约6周大时开始注射三剂。
Three doses are usually administered in infancy, starting at around age six weeks.
当乔治只有6个月大时，老奥巴马死于车祸。
Barack Obama Sr. died in a car accident when George was just 6 months old.
12-23个月大时，儿童每天应食用3-4餐。
孩子11个月大时，右脸肿大，因而被送到医院。
When the baby was 11 months old she was brought to hospital with a swollen right cheek.
当组件的显示区比组件大时，还将用到fill属性。
The fill attribute is also used when the component's display area is larger than the component.
当女儿3个月大时，你不能想像养一个6岁孩子的情景。
When your daughter is 3 months old, you can't imagine having a 6-year old.
开始，幼崽只喝妈妈的奶，到了三周大时，它们开始吃肉。
At first, they live only on milk from their mother. By three weeks of age, they start eating meat.
在小鼠20月大时，即相当于人类老年期的初期，开始给予治疗。
Treatment starting when they were around 20 months old, a stage comparable to early old age in people.
孩子七个月大时，丈夫离她而去，与住在同村的父母生活在一起。
When her child was seven months old, Yulidar's husband left and went back to live with his parents in the same village.
研究发现当你心情沮丧时或者压力大时，你就不怎么想成功的戒烟。
Studies find that you're less likely to be a successful quitter if you quit when you're depressed or under a great deal of stress.
幼狼六个月大时，就会开始和群体中的其他成员一起捕猎更大的动物。
When pups are six months old, they will start hunting larger animals with the rest of the pack.
当3岁大时，7%母乳喂养的婴儿肥胖，而配方奶喂养的则有13%。
To put a point on it, 7 percent of breastfed kids were obese 3-year-olds compared with 13 percent of the formula drinkers.
遗传暗物质也隐约大时，科学家调查哪些基因被转录，或解码成rna。
Genetic dark matter also loomed large when scientists surveyed exactly which DNA was being transcribed, or decoded, into RNA.
两周大时，就可以摇摇晃晃地走路；再过一周，就可以第一次走出兽穴。
By two weeks of age, the pups can waddle, and about a week after that, they may come out of the den for the first time.
小卢豪出生时体重仅为5.2斤，可自他3个月大时体重就开始迅猛增长。
When Lu Hao was born he weighed just 2.6 kilograms, however, from the time he was three months old he began to gain weight rapidly.
宝宝蒙蒂才一个月大时，乔治亚看到了那个记录片并决定在自己身上试一试。
Baby Monty was just a month old when Georgia saw the documentary and decided to try it for herself.
我们规定，无限大时,势能为，这就是为什么所有的,规则轨道总能量为负。
We have defined potential energy 0 to be zero at infinity, and that is why all bound orbits have negative total energy.
世卫组织建议婴儿在6个月大时(180天)开始接受除母乳之外的补充食物。
WHO recommends that infants start receiving complementary foods at six months (180 days) of age in addition to breast milk.
当站点比iPhone视窗大时，这两个显示界面在显示内容时会有所不同。
The two displays differ in what they show when the site is larger than the iPhone viewport.
可在她19个月大时，她得了一场大病，海伦从此失去了视觉、听觉和说话的能力。
Stricken by illness at the tender age of nineteen months, Helen lost her ability to see, hear, and speak.
可在她19个月大时，她得了一场大病，海伦从此失去了视觉、听觉和说话的能力。
Stricken by illness at the tender age of nineteen months, Helen lost her ability to see, hear, and speak.
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