Ages and stages

在表达年龄时，除了“I’m xx years old.”之外，还能有什么新鲜的表达呢？

Approximate ages

I’m in my early twenties [二十岁早期，21–23].

My parents are in their mid-fifties [五十岁中期，54–56].

My grandmother is in her late seventies [七十岁后期，77–79].

My grandfather is nearly/almost eighty [he’s probably 79].

My English teacher’s approximately/roughly thirty. [about 30 / more or less 30]

Other stages

Newborn 新生儿

Newborn 新生儿 (adj/noun): a recently born child or animal. You can use newborn for the first month or two.

例句：A newborn baby can feel small and fragile.

Infant 婴儿

Infant 婴儿 (noun): a baby or very young child up to the age of 1 year old.

例句：In their first year, infants (or babies) learn to focus their vision, explore, and learn about the things that are around them.

Preschooler 学龄前儿童

Preschooler 学龄前儿童 (noun): a child between the age of three and five. It is the stage just before they enter school.

例句：The website is designed so that not only will preschoolers be entertained but they will also learn at the same time.