Befor starting on a sea voyage,prudent navigators learn the sea charts,study sailing directions,and memorize the lighthouse locations to prepare themselves for any conditions they will encounter.

• 谨慎的航海员在出航以前，会研究航海图，确认航海方向，记录灯塔位置，以便为在航海中所能遇到的任何事情做准备。