求翻译：《加勒比海盗4》主要讲述了杰克船长与“不老泉”的传奇故事，他周旋于神秘的旧情人、凶狠的黑胡子海盗与美貌但致命的人鱼之间，想方设法探寻不老泉的秘密。这里特为观众推荐七大看点，助您更好了解本片，观影更加顺畅愉快。是什么意思？

The Pirates of the Caribbean 4 main told of Captain Jack and "old spring" romances, contend he was the mysterious old flame, fierce black beard the pirate but deadly between Mermaid and beauty, to find ways to explore the secrets of Ageless springs. Recommend seven points available to audiences here, help you better understand the film, smooth viewing more enjoyable.