n 32nd President of the United States; elected four times; instituted New Deal to counter the Great Depression and led country during World War II (1882-1945)
中文释义
abbr. 富兰克林·德兰诺·罗斯福（美国第三十二任总统）（Franklin Delano Roosevelt）；飞行资料记录器（ flight data recorder ）；x射线量刻度盘读数（fluorometer dial readings）
