每次旅行回来，他的船都装满了贵重的东西，比如金子和珍宝，还有外国客人和像长颈鹿这样的奇怪动物。
He returned from each trip with boats filled with expensive things such as gold and treasures, foreign guests and strange animals like a giraffe.
是像今天的长颈鹿一样竖直伸展，还是和地面平行地水平伸展呢？
Could they stretch their tall necks upright, as giraffes do today, or did they hold them horizontally, more parallel to the ground?
像长颈鹿，它的头可能永远不会低于心脏。
With a giraffe, for example, its head may never be lower than its heart.
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