非洲和南美洲曾经彼此相连可以从这一事实推断出来。
That Africa and South America were once joined can be deduced from the fact that.
例如，由于有新的物质注入二者之间的海底，非洲和南美洲距离越来越远。
Africa and South America, for example, are moving away from each other as new material is injected into the sea floor between them.
那鱼的后代，现在叫鲷，继续游在非洲和南美洲的淡水水域里。
And the descendants of that fish, now called cichlids, continue to swim the fresh waters of both Africa and South America.
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