Manage Proving Ground testing and all other drives and appraisals, including early experience, FEU and marketing appraisal fleets.是什么意思_Manage Proving Ground testing and all other drives and appraisals, including early experience, FEU and marketing appraisal fleets.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句