From this source, slaves generally are afforded an opportunity of earning sufficient to purchase a knife, a kettle, tobacco and so forth.

从这个来源，奴隶通常有机会赚到足够的钱来购买刀、水壶、烟草等。

It was now on the wane, though every night the equatorial still afforded an opportunity of observing the singular object which would soon disappear altogether from the heavens for perhaps thousands of years.

它现在正在减弱，尽管赤道每天晚上仍然提供观察奇异物体的机会，该物体很快就会从天空中完全消失可能数千年。

In that part of the world, upon that new-found half of the globe, mankind, late in its history, was thus afforded an opportunity to set up a new civilization; here it was strangely privileged to make a new human experiment.

在世界的那个地方，在地球新发现的那一半上，人类在其历史的晚期，因此获得了建立新文明的机会；在这里进行一项新的人体实验是一种奇怪的特权。