要準確用英文描述電動車的性能，可以從以下幾個方面入手。

首先是能源效率方面，用“Energy efficiency”來表達，比如“Electric vehicles are generally more energy efficient than conventional vehicles. They convert a higher percentage of energy from the electrical grid to power the wheels, whereas gasoline engines are less efficient due to heat loss and internal friction.” 意思是電動車通常比傳統(tǒng)車輛更節(jié)能，它們能將電網(wǎng)的能量更高比例地轉(zhuǎn)化為驅(qū)動車輪的能量，而汽油發(fā)動機由于熱損失和內(nèi)部摩擦效率較低。

再說環(huán)保方面，“Environmental friendliness”這個詞很合適，像“One of the major advantages of electric vehicles is that they produce zero emissions, making them much better for the environment.”即電動車的一個主要優(yōu)勢是零排放，對環(huán)境更友好。

在噪音方面，用“Quietness”，比如“Another advantage of electric vehicles is that they are much quieter than gasoline-powered cars, which can reduce noise pollution in cities.” 意思是電動車比汽油車更安靜，能減少城市噪音污染。

關(guān)于節(jié)能方面，“Energy saving”，像“Additionally, electric vehicles are typically more energy efficient than gasoline cars, which means they can save drivers money on fuel costs.” 表示電動車通常比汽油車更節(jié)能，能為司機節(jié)省燃油成本。

總之，掌握這些詞匯和表達方式，就能比較準確地用英文描述電動車的性能啦。