Your kind of profitless tech kind of stocks.

无利可图科技股。

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

是廉价秘诀，对于美国手来说，是一个，无利可图未来。

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情况，比如持续监禁或惩罚时，种情况与反应之间神经连接就会被削弱，直到最终无利可图行为被消除。

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.

他希望避免像个人电脑制造商那样命运，科技巨头插在产品和客户之间，将其变成了无利可图标准化业务。

We should never discontinue the argument as profitless.

我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，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

我得出了类似结论：睡眠科技投资者财富梦想可能会变成一场无利可图噩梦。

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

些努力会继续是“为了人类利益而完成无益英勇事迹”吗？

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

受奖励反应会被强化，而无利可图行为则会被消除。