20.never hang anything over or near an electric bulb.

不要把东西挂在灯泡上或灯泡附近。

The electric bulb suspended from the ceiling burned with ugly sharpness in the dawn.

悬在天花板上的电灯泡在黎明时分闪烁着难看的锐利。

Through the opening leaped Tarzan, and a moment later the room was flooded with light from a dozen electric bulbs.

泰山从开口处跳了进来， 片刻之后，房间里充满了十几个灯泡发出的光。

Even before the invention of the electric light bulb, the author produced a remarkable work of speculative fiction that would foreshadow many ethical questions to be raised by technologies yet to come.

这部科幻名著，它在电气时代到来前就预测到了技术进步必然带来的诸多伦理问题。