小孩的英文怎么说复数

小孩的英语复数形式是"children"。其来源是古英语"cild"的复数形式。

例句：

The children are playing in the park. (这些小孩在公园里玩。)
She has two children. (她有两个小孩。)
The teacher asked the children to open their books. (老师让孩子们打开他们的书。)