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1.The first was how humans might be able to detect multiverses.
detect 发现；探测
Radar is used to detect objects in the air or at sea.
雷达被用来探测空中或海上的目标。
2.This is when our universe suddenly expanded from a tiny point in space into the billions of stars and solar systems we have today.
expand 扩张；膨胀
We have to expand the size of the image.
我们不得不扩大图像的尺寸。
