大学时期的巴拉克·奥巴马不知道自己将是美利坚合众国第一位黑人总统。

At college, Barack Obama didn't know that he will be the first black president of the United States of America.

youdao

上大学时，巴拉克·奥巴马并不知道他将成为美利坚合众国的第一位黑人总统。

At college, Barack Obama didn't know that he was to become the first black president of the United States of America.

youdao