How do you pronounce 瓶頸?

Q: How do you pronounce 瓶頸? A: ping4 geng2, e.g.

瓶頸 (ping4 geng2) — meaning, pronunciation, examples

瓶頸 (ping4 geng2, píng jǐng) — neck of a bottle; (fig.) bottleneck; problem that impedes progress

瓶 (ping4) — bottle; vase; pitcher; classifier for wine and liquids
瓶塞 (ping4 sak1) — bottle cork; bottle stopper
瓶塞鑽 (ping4 sak1 zyun3) — corkscrew
瓶子 (ping4 zi2) — bottle
瓶盂 (ping4 jyu4) — jar; flask; vase; bottle
瓶胚 (ping4 pui1) — preform