X射线能穿透很多物体。

X-rays can penetrate many objects.

《柯林斯英汉双解大词典》

天文学家的理论是，当一个巨大的物体在其自身的引力作用下灾难性地收缩，只留下一个强大的引力场，且没有任何东西能逃脱时，黑洞就形成了。

Astronomers theorize that a black hole forms when a massive object shrinks catastrophically under its own gravity, leaving only a gravitational field so strong that nothing escapes it.

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它们不仅是模仿它们所处的环境中的颜色；它们也能模仿环境中物体的纹理。

They don't just mimic the colors in their environment; they can also mimic the texture of objects in their environment.

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Why should the amount by which you're attracted to the Earth be also a measure of how much you hate acceleration?

为什么物体受地球引力的大小,恰好能衡量物体加速的难易程度呢

耶鲁公开课 - 基础物理课程节选

Those are the familiar and empirical objects that we can see, pieces of paper, bodies, pieces of chalk, bars of metal.

那就是我们能看见的,熟悉的已知的物体，纸，身体，粉笔，金属棒。

耶鲁公开课 - 死亡课程节选

Another question is: at what angle should you fire your projectile so it will go the furthest?

另一个问题是以多大角度抛出,物体能飞得最远

耶鲁公开课 - 基础物理课程节选