not for a second

基本解释

I don't think you should take it for granted, not for a second.
我认为你不能把那种幸福当作理所当然的，一秒钟也不行。
If I ask him for money to buy cigarettes he insists on going with me to purchase them. He will not be left alone, not for a second.
如果我向他要钱去买烟，他便非跟我一道去不可，他自个儿绝不独自呆着，一秒钟也不。
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I am not for a second recommending a worldwide 'wealth relief' policy, where we will steal money from the rich and give it to the poor, though that idea certainly has its attractions.
我完全不是在推崇“财富救济”政策，即从富人那里偷钱接济穷人，但这个想法当然有它诱人之处。

If you are not for it, a second way is to give up the Union.
It's not a particularly interesting game, but while we're here, why don't we just discuss it for a second.
这不是一次特别有趣的博弈,既然说到这里了,不妨多讨论一点
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That one's not so obvious. So let's think about this for a second. To sort a list in linear time, would say, I have to look at each element in the list at most a constant number of times.
所以让我们来思考一会,要在线性时间能排序，列表里每个元素最多被使用常数次,不一定是一次，对吧。
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No, no, not for a second.
WHITEHOUSE: Remarks by the First Lady at a Campaign Event -- Sterling, VA