"Mass crowds at stadiums and cultural sites place immense strain on mobile networks," says Gareth Elliott, director of policy and communications at trade association Mobile UK, "often exceeding local capacity as thousands share limited bandwidth simultaneously."
充电线这个原本不起眼的小玩意直接变成了刚需，你家里 3 根，办公室 2 根，车里 1 根，包里还老是要备 1 根。需求蹭蹭就上去了。。同城约会对此有专业解读
Allows you to edit a document without affecting the formatting.，详情可参考同城约会
block: Writes wait until buffer space is available. Use when you trust the producer to await writes properly.