这个提案的反对者应该问问他们自己，是否把一个还不错但并不完美的东西当做成完美东西的敌人了。

So opponents of the proposed legislation have to ask themselves whether they’re making the perfect the enemy of the good.

youdao

这在理论上听起来不错，但前提是受助国家在他们的计划需要与不需要那些援助这个问题上要认真对待。

That sounds fine in theory, but if recipients were serious about it they would be expected to be saying no to offers of aid that don’t fit in with their plans.

youdao

“这产品对孩子们来说是非常好的，当然对我们其他人也很不错，”他说，“有些人听到这个消息觉得恶心，但实际上，它是纯有机、散养、全天然的食品。”

"If it's good enough for our children, it's good enough for the rest of us," he said. "Some people will hear about it and go yuck — but actually it's pure organic, free-range and totally natural."

youdao

So we're to assume we can get to any piece of data, any instruction in constant time, and the second assumption we're going to make is that the basic primitive steps take constant time, same amount of time to compute. Again, not completely true, but it's a good model, so arithmetic operations, comparisons, things of that sort, we're all going to assume are basically in that in that particular model.

因此如果我们假设在恒定的时间内,我们可以取得任何一块数据,任何一种数据结构的话,我们要做的第二个假设就是,基本的原始操作计算花费的时间是恒定的,这个假设也不是完全正确的，但这个模型其实挺不错的，因此算法操作，比较，这一类的事情，我们在这个特定的模型中都假设是基本的,操作，花费的时间是恒定相同的。

麻省理工公开课 - 计算机科学及编程导论课程节选