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a. 电的，导电的，电动的5 次
They set new standards for ventilation, energy efficiency and heating, and state that new residential buildings must have charging points for electric vehicles.
这些规定为通风、能效和供暖设定了新标准，并规定新建住宅必须配备电动汽车充电桩。
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.
甚至在电灯泡发明之前，这位作者就创作出了一部非凡的推想小说，预示了未来技术将会引发的许多伦理问题。
Half of the pens would [deliver] an electric shock when clicked.
其中一半的笔在按动时会释放电击。
The advance is driven in part by vehicle manufacturers, who are placing big bets on battery-powered electric vehicles.
这一进步在一定程度上是由汽车制造商推动的，他们正在电池驱动的电动汽车上下大赌注。
Although electric cars are still a rarity on roads now, this massive investment could change the picture rapidly in coming years.
尽管目前电动汽车在路上仍很少见，但这一巨额投资可能会在未来几年迅速改变这一局面。