瓶颈 píngjǐng neck of a bottle
neck of a bottle; (figuratively) bottleneck; problem that impedes progress
How to remember 瓶颈: 瓶 bottle + 颈 neck = neck of a bottle.
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How it is used
- A bottleneck limiting progress - 技术瓶颈 (jìshù píngjǐng) a technical bottleneck; 遇到瓶颈 (yùdào píngjǐng) to hit a bottleneck.
- Literal 'bottle neck' but overwhelmingly figurative for a constraint choking throughput or growth.
- Business/tech staple; pairs with 突破 (tūpò, to break through) - 突破瓶颈 = overcome the bottleneck.