一小段英文~麻煩幫我中翻英~ - 生活

Electricity is an important part of all substances. Usually, equal amounts
of positive and negative electricity are present and cancel each other's
effect, and so we do not notice that any electricity is there at all.
But when the positive and negative parts are separated in some way, we see their
effects and recognize that electricity is present. When, for instance, an
ebonite fountain pen is rubbed with a silk handkerchief some of the
atoms in the silk have one or two of their electrons knocked off.
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不太懂中文翻譯的意思!!