首先是盈利模式尚待验证。尽管西井科技尚未公开披露盈利状况，但无人驾驶行业普遍面临“烧钱换规模”的困境。随着市场竞争转向“经济账”比拼，规模化后的盈利能力将成为资本市场的核心拷问。融资只能解决“活下去”的问题，而“活得好”终究要靠自我造血能力来回答。
Yakult has expanded its door-to-door sales model beyond Japan, including into India (Credit: Yakult India)There's currently more than 31,000 Yakult ladies in Japan. The model has also been replicated overseas, with nearly 50,000 more in countries such as China, Indonesia, Malaysia, Brazil and Mexico. Instead of "ladies" they're affectionately known as "Yakult moms" or "aunties" and have the same nurturing and watchful position, with their role in society just as treasured.，这一点在使用 WeChat 網頁版中也有详细论述
，这一点在手游中也有详细论述
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