That was in the days before electricity was available at the flick of a switch.

那是在过去，还没有到开关一响就有电的时代。

《牛津词典》

Let's hope they're wise enough not to be fooled by a machine that claims to determine truthfulness at the flick of a switch.

我们希望他们足够聪明，不要被一台声称只要按一下开关就能确定真实性的机器愚弄。

youdao

IMAGINE redecorating your house at the flick of a switch, or changing the colour of your coat at the press of a button.

可以想象一下通过旋动按钮可以重新装修房子，或者是通过按钮可以改变衣服的颜色。

youdao

The roof is connected by an elongated bicycle chain to a garage-door motor that rolls it back at the flick of a switch.

FORBES: A Star Is Born

The presence of leveraged traders such as quants at their heart means conditions can now turn, at the flick of a switch, from stability to panic.

ECONOMIST: The peril for markets when computers miscalculate

Trade with the U.S. has played a huge role in making coastal China prosperous, but as the anti-Japanese demonstrations in 2005 remind us, xenophobic sentiments can be turned on at the flick of a switch.

FORBES: Food Fight