那条船在首次航行时就沉没了。
那条船在首次航行时就沉没了。
一艘新船从英国出发，开始了去美国的首次航行。
A new ship set off from England to American on its first trip.
全部由女性组成的游艇船员通过首次环球航行而创造了历史。
The all-female yacht crew made history by becoming the first to sail round the world.
我们在海上航行十天之后，首次看见陆地。
人类航海家花费几百年的时间来解决远距离航行中辨认经度的难题。这一研究首次揭示了动物如何做到这一点。
'this study shows, for the first time, how an animal does this.'
我们在海上航行十天之后，首次看见陆地。
Examles: a After ten days at sea, we had our first sight of land.
我们在海上航行十天之后，首次看见陆地。
Examles: a After ten days at sea, we had our first sight of land.
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