Since the 18th century, doctors have used injections of gold salts to treat autoimmune disorders like lupus and rheumatoid arthritis.是什么意思_Since the 18th century, doctors have used injections of gold salts to treat autoimmune disorders like lupus and rheumatoid arthritis.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句