Graf, who won 107 career singles titles, said juggling the demands of motherhood and her charity work made it difficult to establish a strict training regimen.是什么意思_Graf, who won 107 career singles titles, said juggling the demands of motherhood and her charity work made it difficult to establish a strict training regimen.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句