WhatsApp famously reached 450m users around the world without spending so much as a dime on marketing. Facebook bought the instant-message service for (ahem) 190bn dimes not long afterward.
众所周知,WhatsApp没在市场营销上花一分钱,就将其manbetx app苹果 用户规模做到了4.5亿人。此后不久,Facebook就斥资(咳咳)190亿美元收购了这家即时通讯服务公司。
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