一些科学家说这是人类成功的关键。
Some scientists say that it was the key to the success of mankind.
一些科学家说，感冒时吃药实际上会对你有害。
Some scientists say taking medicines when you have a cold is actually bad for you.
一些科学家说，我们最初都有部分外星人血统。
一些科学家说，事实上，动物和人类一样是具有多种情感和情绪的。
Indeed, animals are capable of many emotional feelings, just like humans, some scientists say.
朱莉娅：一些科学家说，我们最初都有部分外星人血统。
Julia: Some scientists say that we were originally part-alien.
科学家们说，其中的一些生特是全新物种。
Some of those creatures represent completely new species, the scientists say.
一些科学家认为可能代表着部落的行动，比如说成功的狩猎行动或者说是一种代表着作息的安排。
Some are thought to represent tribal movements, successful hunts, or the passage of time.
科学家爱因斯坦说，科学上一些问题往往比人们想象中的浅。
Scientists Einstein said, science some problems than people imagine the light.
科学家爱因斯坦说，迷信上一些问题往往比人们设想中的浅。
Scientists Einstein said, science some problems than people imagine the light.
科学家爱因斯坦说，迷信上一些问题往往比人们设想中的浅。
Scientists Einstein said, science some problems than people imagine the light.
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