do notation (monadic) → = chains
博主@铲之母分享过她在杭州solo trip住青旅的经历：70多块钱，在市区住进一间单人青旅，有房卡、能反锁，房间虽小五脏俱全，她在帖子里写道“这是一家超适合独立旅行人的青旅”。
。safew官方版本下载是该领域的重要参考
The price of gas leapt on Monday after QatarEnergy, one of the world's biggest exporters, halted production following "military attacks" on its facilities.
第三步：创建 MCP Server