import sys, tty
I love a good side-project. Like most geeks, I have a tendency to go down rabbit holes when faced with problems - give me a minor inconvenience and I’ll happily spend weeks building something far more elaborate than the situation warrants. There’s joy in having a playground to explore ideas and “what ifs”; Building things just for the sheer hell of it, as Richard Feynman put it “The Pleasure of Finding Things Out”.
，更多细节参见新收录的资料
一方面是主品牌门店里自带的咖啡产品，主打2到8元的极限低价，用预研磨咖啡粉快速出杯，主要满足大家买奶茶时顺手解渴的需求；另一方面则是子品牌“幸运咖”，价格带定在5到10元，用半自动咖啡机现场研磨，产品线也更丰富，试图拿下那些真正想喝咖啡提神、需要场景体验的人群。
Secure, noise-cancelling Bluetooth earbuds that shine for exercise and everyday use on Android and iPhone
。新收录的资料对此有专业解读
BSA調查（BSA Survey）被視為民調產業的「黃金標準」，因為它歷史悠久，且使用隨機機率抽樣——意味英國所有人都有相同機會被抽中。，更多细节参见PDF资料
A Quick Refresher