infancy
n[U]
1
(a) state or period of being an infant; early childhood 婴儿期; 幼儿期
in early infancy 在婴儿时期.
(b) (Brit law 律) period before one reaches the age of 18; minority 未成年(未满18岁者).
2 (fig 比喻) early stage of development or growth (发展或生长的)初期
The project was cancelled while it was still in its infancy. 这项目尚处於初期阶段时就取消了.