He was a welcome guest at the Roosevelt White House, and after war broke out in 1939 he worked tirelessly to promote British interests in America.是什么意思_He was a welcome guest at the Roosevelt White House, and after war broke out in 1939 he worked tirelessly to promote British interests in America.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句