10.从从容容、游刃有余，匆匆忙忙、连滚带爬
Streams are iterables.
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The Writer is not a concrete class. Any object that implements write(), end(), and abort() can be a writer making it easy to adapt existing APIs or create specialized implementations without subclassing. There's no complex UnderlyingSink protocol with start(), write(), close(), and abort() callbacks that must coordinate through a controller whose lifecycle and state are independent of the WritableStream it is bound to.
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南方周末：那是否可以理解为，这种关于速度的选择，其实是有意识的决定，而不是完全即兴发生的？，推荐阅读同城约会获取更多信息
He claims to have been to Co-op Live a handful of times since it opened, and said he thinks the venue is still suffering from "teething problems".