infancy
noun [ U ] uk/ˈɪn.fən.si/ us/ˈɪn.fən.si/
C2 婴儿期，幼年
the time when someone is a baby or a very young child
Her youngest child died in infancy. 她最小的孩子在幼年时夭折了。
be in its infancyC2 在初期，在早期
to be very new and still developing
The system is still in its infancy. 这个体系尚处于初期发展阶段。
When science was in its infancy, the Greeks believed that the Earth was at thecentre of the universe.
At that time, the automobile industry was still in its infancy.
He was a comedy star when the network was in its infancy.
Biofuel technology is still in its infancy.