bottleneck

'bɒtlnek

GRE

n. the narrow part of a bottle near the top
v. slow down or impede by creating an obstruction
v. become narrow, like a bottleneck

n. 瓶颈
[经] 瓶颈, 增产障碍

19,722

BNC 频率

15,429

使用频率

bottle（瓶子）+ neck（脖子），可以理解为瓶子的脖子，瓶颈形状限制了液体流出，表示某种限制或障碍。

例句

1. The traffic jam created a bottleneck on the highway.

交通堵塞在高速公路上造成了瓶颈。

2. We need to identify the bottleneck in our production process.

我们需要找出生产过程中存在的瓶颈。

3. The lack of funding was a major bottleneck for the project.

缺乏资金是这个项目的主要瓶颈。