child/tʃaɪld/
n.children1. 小孩（可指男孩或女孩）They have three children.他们有三个孩子。
The child is father of the man.; The child is father to the man.三岁定到老。
Riding a bicycle is child's play when you've had some practice.你只要稍加练习，骑自行车是件很容易的事。
Our first child died three days after he was born.我们的第一个孩子出生后三天就死了。
2. 孩子气的人3. 没经验的人His wife's a child in money matters.(喻)他的妻子在钱财方面还是个毛孩子。／他的妻子不善于理财。
I have to say I am a child in these matters.我得说对于这种事我毫无经验。
4. 产物；结果The hydraulic bomb is the child of 20th-century science.(喻)氢弹是二十世纪科学的产物。