好设计到最后一个细节都是一致的
Дания захотела отказать в убежище украинцам призывного возраста09:44
，详情可参考51吃瓜
Publication date: 28 February 2026
tee() splits a stream into two branches. It seems straightforward, but the implementation requires buffering: if one branch is read faster than the other, the data must be held somewhere until the slower branch catches up.
But some question whether this expensive technology is worth it.