She became one of the first American women to serve in a major diplomatic position.

VOA: special.2010.08.08

American voters often vote based on character rather than position.

美国选民经常根据候选人的性格,而非政治立场来投票

耶鲁公开课 - 博弈论课程节选

And he was the first African-American to have that position at Johns Hopkins Hospital.

VOA: special.2009.09.04

The position made him the highest level African American in the United States government.

VOA: special.2009.11.01

He was the first American to hold that position.

VOA: special.2009.08.02