phot-,光，-on,子，词源同ion,electron.

1. The chance that an electron absorbs more than one photon is negligible.

一个电子吸收一个以上的光子的机会是极少的.

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2. A photon leaving the sun will be " retarded " by the sun's gravity.

离开太阳的光子因受太阳引力而 “ 减速 ”.

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3. When a photon collides with a molecule, several things can happen.

当光子与一个分子碰撞时, 可发生几种情况.

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4. The energy of the photon gives its color, or wavelength.

光子的能量决定了光子的颜色, 也就决定了它的波长.

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5. As with the photon, material particles can be created and destroyed.

象光子一样, 实物粒子也可以产生和毁灭.

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