time.sleep(2 ** attempt) # 指数退避
zsh: command not found: cowsay
，详情可参考夫子
Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04
While the Netflix subscription is free for eligible customers, you'll have to manually activate it by navigating to the T-Life app and selecting Manage See plans Manage add-ons. From there, scroll down to select the Netflix streaming benefit and click continue. Then follow the prompts to link an existing account or create a new one. For help, head to the Netflix support page.
The 24-year-old, whose hits include Illegal, Stateside and Boy's A Liar, is the first woman to be given the prize since its inception in 1977.