(Screenshot from Weibo)

Lucy is a 6-year-old Chinese orphan with Down's syndrome. Recently she was adopted by a couple in the US. When Lucy arrived at Houston Airport, her foster parents Audrey and Brent were already waiting for her with their five children.

Audrey could not help crying the moment she saw Lucy. She said to her, "Hi, hi, I'm momma." When Lucy replied "mama," everyone at the scene was touched.

Brent and Audrey saw a video of Lucy from the Great Wall China Adoption agency. They felt great affection about Lucy and decided to adopt her. Audrey was deeply moved and said she would love Lucy so much just like she is her own child.