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。

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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。

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B lifting, the rope not tied hand wheel or valve stem.

b起吊时，绳子不要系在手轮或阀杆上。

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B lifting, the rope not tied hand wheel or valve stem.

b起吊时，绳子不要系在手轮或阀杆上。

youdao