Sure, science involves trial and error. Scientists refine theories each day. But as they do, they help us grasp more clearly the wonders of the world and the universe.
当然,科学需要反复试验。科学家每天都在完善理论。但当他们这样做的时候,他们帮助我们更清楚地把握世界和宇宙的奇迹。
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