在英语中，宝宝的生长过程通常被称为 "infant development" 或 "child development"。这个词来源于拉丁文 "infans"，意思是 "不会说话的婴儿"，"infant" 在英文中常用来指婴儿。

下面是一些英文例句及其中文翻译：

Infant development is the process of physical, cognitive, social, and emotional growth that occurs in children from birth to age three. (婴儿发育是指婴儿从出生到三岁期间所发生的身体、认知、社会和情绪上的成长过程。)
During the first year of pfe, an infant's brain triples in size. (在人生的第一年里，婴儿的大脑体积会增加两倍。)
Child development refers to the changes that occur in children as they grow and mature. (儿童发育指的是儿童随着生长和成熟而发生的变化。)
It is important for parents to understand the stages of child development in order to support their child's growth and development. (父母了解儿童发育的阶段对于支持他们的儿子或女儿的生长和发育是很重要的。)

注意：在英语中，"baby" 指的是婴儿，"infant" 指的是年龄在一岁以内的婴儿，"child" 指的是年龄在一岁以上的儿童。