One of Barack Obama's first acts as president was lifting the U.S. restrictions on medical research using embryonic stem cells.

巴拉克·奥巴马宣誓就职后施行的第一批政策中，加强对胚胎干细胞医疗研究的限制赫然在列。

youdao

One ofBarack Obama's first acts as president was lifting the U.S. restrictions onmedical research using embryonic stem cells.

奥巴马上任伊始，就提高了美国对使用胚胎干细胞进行医学研究的限制。

youdao

One ofBarack Obama's first acts as president was lifting the U.S. restrictions onmedical research using embryonic stem cells.

奥巴马上任伊始，就提高了美国对使用胚胎干细胞进行医学研究的限制。

youdao