On one occasion, Levi Coffin was transporting so many runaway slaves that he disguised them as a funeral procession.

有一次，利瓦伊·科芬运送的逃亡黑奴实在太多，他就把他们装扮成出殡队伍。

The United States Congress twice passed laws authorizing the capture and return of runaway slaves, first in 1793 and again in 1850.

美国国会曾两次通过追捕逃奴的法案，第一次是在1793年，第二次是在1850年。