bottlenecks
n. [包装]瓶颈(bottleneck 的复数)
例句
At one of the bottlenecks, forested hills rise to form a V, leaving a corridor of open ground only about 150 metres wide, filled with private homes.
在其中一个瓶颈山区,森林覆盖的山丘形成一个 V 形,只剩下150米宽的开放地带,里面全是私人住宅。
Which ones are bottlenecks?
哪些是瓶颈?
Where are the bottlenecks?
瓶颈在哪里?