They might find it hard or impossible to "switch off".

他们可能会觉得很难或者不可能停下来。

youdao

With no hard drive, and a switch to turn off the wireless connection (not the fastest in the world), power can be conserved.

网簿没有硬盘驱动器，有一个转向无线连接的开关(不是世界上最快的)，能节约用电。

youdao

For me, this works much better than trying to cheer myself up reading online – email and other distractions make it very hard to switch off mentally.

对我来说，阅读小说远比在网上阅读来的作用更大一些，因为邮件或者其他一些娱乐都会让我很难将注意力完全集中于故事之中。

youdao

Maybe my AC is working too hard and I need to switch if off before an emergency occurs.

FORBES: When the lights went out, my light went on

With no hard drive, and a switch to turn off the wireless connection (not the fastest in the world), power can be conserved.

ECONOMIST: Rational consumer

The device is also made out of 65% recycled plastics, and comes with a 0-watt hard switch that lets you cut power completely off from the monitor for zero power consumption.

CNN: Computer monitor uses sensor to promote better posture