It's illegal in the United States to obtain a kidney through any kind of valuable consideration.

在美国，通过任何形式的有价值的代价获得肾脏都是非法的。

'And that's what I never gave yet, for any job of work where there wasn't valuable consideration to be gained.

'而这就是我从未付出过的，对于任何没有获得有价值考虑的工作。

In those days protection was seldom granted without a valuable consideration, and this tax might perhaps be considered as compensation for what their patrons might lose by their exemption from other taxes.

在那些日子里，保护很少会在没有有价值的考虑的情况下授予，而这种税收也许可以被视为对他们的赞助人因免除其他税收而可能遭受的损失的补偿。