Sent_en: 2zh The exact cause is unknown - suggestions from eyewitnesses include the boat suddenly turning left, being hit by a wave, and many of the passengers moving to one side of the boat together.
Sent_yy: 确切的原因还不清楚-目击者的建议包括船突然左转，被海浪击中，许多乘客一起移到船的一侧。