What we have gained in convenience from labor-saving devices over the past half-century, we have paid for in terms of a sharp decline in physical activity.

半个世纪以来，我们从各种节省人力的设备中得到很多便利，但这是以我们身体活动的大大减少为代价的。

youdao

But now that I have become more professional in technique, I have equipped my workshop with an electric saw as well as an electric plane, and several other labor-saving devices.

但现在我的技术愈来愈专业化，我的工作间也添加了电锯和电刨，以及其他省力的装置。

youdao

All the marvels of electricity, of modern medicine, of new modes of transport and labor-saving devices, were their gift.

电器、现代药物、新式交通和省力的用具，这些神奇之物就是他们送来的礼品。

youdao

He lived in a better house with new labor-saving devices.

VOA: special.2010.12.02

Governments can save jobs by discouraging new technology or outlawing labor-saving devices like automatic elevators and automated telephone service.

FORBES: Jobs and Public Policy

Businesses usually increase productivity or output per hour worked by developing labor-saving devices and processes, in recent years that has involved computers.

FORBES: Why Fixing America's Schools Means Increasing Teacher Productivity

So little is expected of kids that even adolescents may not know how to operate the many labor-saving devices their homes are filled with.

NEWYORKER: Spoiled Rotten