In our lab today we will test the hypothesis that baby can count as early as a five month age.

在今天的实验里面我们将验证关于小孩早在五个月大的时候就能数数的假说。

youdao

She has a five-month-old baby.

她有一个五个月的婴儿。

youdao

A five-month-old baby born with a congenital heart defect undergoes a catheterization.

VOA: standard.2010.01.01

Zoo employees want to be careful, and have a four- to five-month transition period to make sure first that the baby is healthy, then will be able to socialize and be accepted within its population of eight other gorillas.

NPR: Grunting Ohio Zoo Workers Act As Moms To Gorilla