n. United States industrialist who manufactured vacuum cleaners (1849-1932)
n. United States lawyer who was director of the FBI for 48 years (1895-1972)
n. 31st President of the United States; in 1929 the stock market crashed and the economy collapsed and Hoover was defeated for reelection by Franklin Roosevelt (1874-1964)
n. a kind of vacuum cleaner
n. 胡佛电动吸尘器
vi. 用真空吸尘器打扫