1. to bottleneck something through one channel 通过一个渠道对某事情加以限制
2. However, the expansion of our city the greatest bottleneck is lack of utility investment. 但目前我国城市扩张的最大瓶颈，正是公用事业的投资不足。
3. The usual bottleneck in a conventional router is the relentless next-hop route table lookup for the constant stream of incoming packets. 常规路由器中常见的瓶颈就是为不断送来的恒定的包流紧张地查找下一跳跃的路由表。
英英解释
n.
1. a narrowing that reduces the flow through a channel
2. the narrow part of a bottle near the top v.
1. slow down or impede by creating an obstruction
2. become narrow, like a bottleneck
