包括木鸟途家这种垂类平台在内的住宿市场只有两种壁垒：要么最终成为一个轮子一直转，不断反向影响上下游，从而进一步扩大自身规模，最终实现强者恒强的超级平台，像携程、美团；要么成为一个品牌本身就是壁垒的超级品牌，比如爱彼迎。
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Martin says that people who have acid reflux tend to benefit from having their head propped up a bit. You can achieve this by propping up your head, neck, and shoulders with pillows, or by investing in an adjustable mattress that you can elevate.
Фото: Karim Sahib / Reuters