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n. 婴儿，幼儿10 次
From life expectancy to cancer and infant mortality rates, we are lagging behind many of our peers.
从预期寿命到癌症和婴儿死亡率，我们都落后于许多同类国家。
Kung children as young as four will help to look after younger ones and “baby-wearing”, in which infants are carried in slings, is considered the norm.
年仅四岁的昆族儿童就会帮忙照看更小的孩子，而用背带背着婴儿的“背娃”做法被视为常态。
It found that infants had an average of 14 alloparents a day by the time they were 18 weeks old, and were passed between caregivers eight times an hour.
研究发现，婴儿长到18周大时，平均每天有14位异亲照料者，且每小时要在照料者之间传递八次。
An infant born to a hunter-gatherer society could have more than ten caregivers — this contrasts starkly to nursery settings in the UK where regulations call for a ratio of one carer to four children aged two to three.
出生在狩猎采集社会的婴儿可能有十多位照料者——这与英国的托儿所形成了鲜明对比，英国的规定要求，对于两到三岁的儿童，照料者与儿童的比例为一比四。
carrying infants around by their parents.
由父母带着婴儿四处走动。
We know that a typical infant will instinctively gaze into its mother’s eyes, and she will look back.
我们知道，一般婴儿会本能地凝视母亲的眼睛，而母亲也会回望。
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Infants are wired to look at parents’ faces to try to understand their world, and if those faces are blank and unresponsive — as they often are when absorbed in a device — it can be extremely disconcerting for the children.
婴儿天生会通过看父母的脸来试图理解他们的世界，如果这些脸面无表情、毫无反应——父母沉迷于电子设备时往往如此——孩子们就会极度不安。
Many of the ships were lost in storms, many passengers died of disease, and infants rarely survived the journey.
许多船只在风暴中失踪，许多乘客死于疾病，婴儿很少能在旅途中幸存。
Trade publications counselled department stores that, in order to increase sales, they should create a “third stepping stone” between infant wear and older kids’ clothes.
行业刊物建议百货商店，为了提高销量，应在婴儿服装和大童服装之间创造一个“第三块垫脚石”。
focus on infant wear and older kids’ clothes.
专注于婴儿服装和大童服装。