This port is a vital chokepoint for maritime trade.
Tips
usage
咽喉 is more formal/medical than 嗓子 (sǎngzi, colloquial for throat) or 喉咙 (hóulóng, everyday word). In its figurative meaning of 'strategic chokepoint,' it appears in military and geopolitical contexts — 咽喉要道 means a vital passage.