1. Wearing masks and costumes， they often impersonated other people， animals， or supernatural beings， and mined the desired effect – success in hunt or battle， the coming rain， the revival of the Sun – as an actor might.
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　　戴着面具身着盛装的人们，经常扮演各种其他人物、动物或超自然生灵，并且作为一个扮演者所能做的，就是期盼一个在狩猎或战役中获胜、降雨的来临，阳光的重现的结果。

　　2.But these factors do not account for the interesting question of how there came to be such a concentration of pregnant ichthyosaurs in a particular place very close to their time of giving birth.

　　但是这些事实不能解释这个令人感兴趣的问题，就是为什么在一个特殊的靠近他们出生的地方如此的集中了这么多怀孕的鱼龙。