A stay-at-home girl paints a portrait for her teacher in Hefei, capital of east China's Anhui province, March 7, 2014. To greet the International Women's Day on March 8, a primary school in Hefei organized a painting activity on Friday, in which stay-at-home children painted portraits for the teachers that helped them a lot in their daily life when their parents as migrant workers were away. (Xinhua/Liu Junxi)

Stay-at-home children show their paintings for their teachers in Hefei, capital of east China's Anhui province, March 7, 2014. To greet the International Women's Day on March 8, a primary school in Hefei organized a painting activity on Friday, in which stay-at-home children painted portraits for the teachers that helped them a lot in their daily life when their parents as migrant workers were away. (Xinhua/Liu Junxi)

A stay-at-home girl paints a portrait for her teacher in Hefei, capital of east China's Anhui province, March 7, 2014. To greet the International Women's Day on March 8, a primary school in Hefei organized a painting activity on Friday, in which stay-at-home children painted portraits for the teachers that helped them a lot in their daily life when their parents as migrant workers were away. (Xinhua/Liu Junxi)