# 使用装饰器模式组合存储（同时写入DB和CSV）
The Web streams spec requires promise creation at numerous points, often in hot paths and often invisible to users. Each read() call doesn't just return a promise; internally, the implementation creates additional promises for queue management, pull() coordination, and backpressure signaling.
，这一点在91视频中也有详细论述
Семен Александров (старший редактор отдела Мир)
These tiny beads could have been stitched onto clothing or attached to jewellery
Card trading — Trade Pokémon cards with other players and get expert tips on how to play from event leaders.