Mother’s Day at the White House May 07, 2010 | 12:44 First Lady Michelle Obama welcomes special guests, including former First Lady Rosalyn Carter, to the White House for a special event for mothers a
In the coming years, I became a medical student. 后来几年，我去了医学院读书。 One of every hundred children born worldwide has some kind of heart disease. 我得知，世界上每一百个新生儿中就会有一个患有某种心脏疾病。 There's a part of this proble
