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来源:雅诚德英语网
This material gradually coalesced into lumps called planetesimals as gravity and chance smashed smaller pieces together.
随着重力和机会将较小的碎片粉碎在一起,这种物质逐渐聚集成块状,被称为天体。
This material gradually coalesced into lumps called planetesimals as gravity and chance smashed smaller pieces together.
随着重力和机会将较小的碎片粉碎在一起,这种物质逐渐聚集成块状,被称为天体。