United States general who was the first African American to serve as chief of staff; later served as Secretary of State under President George W. Bush (born 1937)
English physicist who discovered the pion (the first known meson) which is a subatomic particle involved in holding the nucleus together (1903-1969)
双语例句
I am also permitted to refer to Professor Raymond Powell of the Education Department at the Normal college. 敝人也提请师范学院教育系鲍尔教授作证明人，已得到他的同意。
Mr Powel has marked out a general course of action. 鲍威尔先生已经拟定了一个总的行动计划。
The Powell structural research lab at the university of California at San Diego tests new bridge materials such as carbon and fiberglass polymers. 位于圣地亚哥的加州大学鲍威尔建筑实验室试制出了新的桥梁建筑材料，如碳和玻璃纤维聚合体。
