He explains that rip currents are often the result of typhoons or weather fronts, which bring in large amounts of seawater, which as it retreats forms rip channels when the water rushes past narrowing undersea features. If you are unlucky enough to get caught, the one thing you don't want to do is try to swim straight back against the current.
孫兆鴻解釋，沙灘暗流常因颱風或鋒面將大量海水帶進，海水快速退回時往往挖出一道深溝而形成陷阱，因此若不巧被捲入，千萬不要逆流回岸邊。