The most important growing area centres on Jodhpur in Rajasthan, India . Currently India is the source of about 80% of the world production of guar gum.是什么意思_The most important growing area centres on Jodhpur in Rajasthan, India . Currently India is the source of about 80% of the world production of guar gum.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句