| 单词 | bottle-neck |
| 释义 | n (a) narrow or restricted stretch of road which causes traffic to slow down or stop 瓶颈路段（道路的狭窄或受限制的部分, 交通易受阻）. (b) anything that slows down production in a manufacturing process, etc （影响生产效率的）障碍. |
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