A solution to this problem came with the formation of the United Service Organizations, popularly known as the USO, on February 4, 1941.是什么意思_A solution to this problem came with the formation of the United Service Organizations, popularly known as the USO, on February 4, 1941.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句