Bats have a problem: how to find their way around in the dark.

蝙蝠有一个难题：如何在黑暗中找到自己的路。

youdao

Bats have a problem: how to find their way around the dark.

蝙蝠有一个问题：该如何在黑暗中找到他们的道路。

youdao

Bats have a problem: how to find their way around the dark.

蝙蝠有一个问题：该如何在黑暗中找到他们的道路。

youdao