And the animals usually avoid their own waste, so that reduces the amount of good grazing space even more.
VOA: special.2010.01.19
So, even if the cost is small, $10 a dose, it quickly amounts to a large amount of money.
因此,即使单只成本很小,可能只有十美元,但是这很快就会累积成为很大的金额
So even if we strip an atom of all of its electrons, we still have that same amount of positive charge in the nucleus.
所以即使把一个原子的所有电子都拿走,原子核还是带那么多的正电。
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