bottleneck|bottlenecking

这个十字路口在高峰时段总是交通堵塞的瓶颈。

This intersection always becomes a ___bottleneck during rush hour.

交通拥堵严重阻碍了城市的物流效率。

Heavy traffic is ___bottlenecking the city's logistics efficiency.

这条小路在高峰时段总是形成交通瓶颈。

This narrow street always becomes a ___bottleneck during peak hours.