Your kind of profitless tech kind of stocks.

无利可图的科技股。

That is a recipe for cheap crude—and, for America's oilmen, a crude, profitless future.

是廉价原油的秘诀，对于美国的油手来说，是一个原油，无利可图的未来。

When stimulus-response sequences are followed by an annoying or unpleasant state of affairs, such as continued imprisonment or punishment, the neural connections between the situation and response are weakened until, eventually, profitless acts are stamped out.

当刺激-反应序列之后出现令人烦恼或不愉快的情况，比如持续的监禁或惩罚，种情况与反应之间的神经连接就会被削弱，直到最终无利可图的行为被消除。

They want to avoid the fate of PC makers, which the tech giants turned into profitless commoditised businesses by inserting themselves between their products and customers.

他们希望避免像个人电脑制造商那样的命运，科技巨头们插在它们的产品和客户之间，将其变成了无利可图的业务。

We should never discontinue the argument as profitless.

我们永远不应该因为无利可图而停止争论。

Or the outcome may be profitless, such as still being trapped in a cage.

或者结果可能是徒劳的，比如仍然被困在笼子里。

I reach a similar conclusion sleep tech investors dreams of riches may turn into a profitless nightmare

我得出了类似的结论：睡眠科技投资者的财富梦想可能会变成一场无利可图的噩梦。

Will these efforts remain a " profitless heroic deed accomplished for the good of mankind" ?

些努力会继续是“为了人类的利益而完成的无益的英勇事迹”吗？

Rewarded responses are stamped in, while profitless acts are stamped out.

受奖励的反应会被强，而无利可图的行为则会被消除。