bottleneckKK [ˋbɑtəlˏnɛk] /ˈbɑtəlˌnɛk/發音名詞1瓶頸、障礙、癥結The approval process has become the main bottleneck in production.審核流程已成為生產上最主要的瓶頸。2窄路段、堵塞路段Traffic slows to a crawl at the bottleneck near the bridge.車流到橋邊的窄路段就慢得像在爬。3瓶頸、瓶口He gripped the bottleneck tightly and poured the water out.他緊握瓶頸，把水倒了出來。動詞1阻礙、拖慢、卡住常用被動The whole project was bottlenecked by a shortage of chips.整個專案因為晶片短缺而卡住。