Hoping to cash in, the 32-year-old Levchin will push Slide down a potentially slippery slope Monday when he injects advertising into the mix for the first time.是什么意思_Hoping to cash in, the 32-year-old Levchin will push Slide down a potentially slippery slope Monday when he injects advertising into the mix for the first time.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句