谨慎的航海员在出航前，会研究航向，记录的灯塔的位置，以便对各种可能出现的情况做到有备无患。
Before staring on a sea voyage, prudent navigators learn the sea charts, study the sailing directions, and memorize lighthouse locations to prepare themselves for any conditions they might encounter.
谨慎的航海员在出航前，会研究航向，记录的灯塔的位臵，以便对各种可能出现的情况做到有备无患。
Before staring on a sea voyage, prudent navigators learn the sea charts, study the sailing directions, and memorize lighthouse locations to prepare themselves for any conditions they might encounter.
谨慎的航海员正在出航前，会钻研航向，记录的灯塔的地位，以便对种种可能出现的情况做来临渴掘井。
Before staring on a sea voyage, prudent navigators learn the sea charsailing directions, and memorize lighthouse locations to prepare themselves for any conditions they might encounter.
谨慎的航海员正在出航前，会钻研航向，记录的灯塔的地位，以便对种种可能出现的情况做来临渴掘井。
Before staring on a sea voyage, prudent navigators learn the sea charsailing directions, and memorize lighthouse locations to prepare themselves for any conditions they might encounter.
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