How to use "imperfectly" in a sentence

The fugitive-slave clause of the Constitution, and the law for the suppression of the foreign slave trade, are each as well enforced, perhaps, as any law can ever be in a community where the moral sense of the people imperfectly supports the law itself

The foreign slave trade, now imperfectly suppressed, would be ultimately revived, without restriction, in one section, while fugitive slaves, now only partially surrendered, would not be surrendered at all by the other.