A likely explanation for this involves the fact that intercontinental migrations require both a land bridge connecting the two continents and the suitable habitat both on and across that land bridge.
对此,有一种可能的解释是,洲际迁移既需要连接两个大陆的大陆桥,也需要大陆桥上和桥对面存在合适的栖息地。
This is a bridge connecting heaven and earth.
这是一座桥连接天堂与人间的桥。
In the past, it is the main bridge connecting with people.
在过去邮政是人与人之间联系的主要桥梁。
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