让我们回到主题，有水就意味着生命。天文学家们相信，如果木卫四上确有海洋的存在，那么它便很有可能存在着复杂的生命。

In keeping with the theme that water might equal life, astronomers believe that if such an ocean exists on Callisto, it's possible that complex life might also be in it.

youdao

让我们回到主题，有水就意味着生命。天文学家们相信，如果木卫四上确有海洋的存在，那么它便很有可能存在着复杂的生命。

In keeping with the theme that water might equal life, astronomers believe that if such an ocean exists on Callisto, it's possible that complex life might also be in it.

youdao