If it were even to take pains to prevent their importation, it would not be able to effectuate it.

即使它竭力阻止它们的进口， 它也无法实现。

That of England contributed as little towards effectuating the establishment of some of its most important colonies in North America.

英国对在北美建立一些最重要的殖民地的贡献同样微乎其微。

That this union, however, could be easily effectuated, or that difficulties, and great difficulties, might not occur in the execution, I do not pretend.

然而，这种结合可以很容易地实现， 或者在执行过程中可能不会出现困难， 而且是很大的困难， 我不假装。

Such people may be called the effectual demanders, and their demand the effectual demand; since it maybe sufficient to effectuate the bringing of the commodity to market.

这样的人可以称为有效需求者， 他们的需求就是有效需求； 因为它可能足以实现将商品推向市场。