It involved about eight thousand preschool children whose parents took part in government research on early childhood.

VOA: special.2010.06.09

And he goes on to describe the sensations of early childhood.

他接着讲述童年早期的感觉。

耶鲁公开课 - 1945年后的美国小说课程节选

Peterson says an early childhood education class got her thinking about ways to incorporate more activity into their school day.

VOA: standard.2010.06.25

She had a very difficult childhood although information about her early history is limited.

VOA: special.2009.06.07

She described her many early efforts at acting during childhood.

VOA: special.2010.05.28