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Hybrid cars are known as hybrids because they use anelectric motor to augment the performance of a small, efficientgasoline engine.
混合動力汽車簡稱“hybrids”，因為這類汽車采用電動馬達增加小而高效的燃氣發動機動力。
But this isn't the only reason hybrids are moreefficient than gas-powered cars.
但這并混合動力汽車比燃氣汽車高效的原因之一。
Did you know that Hybridcars are made of lightweight materials, so they require lessenergy to accelerate or drive up a hill?
你知道嗎？混合動力汽車選用輕型材料，所以加速或爬坡需要的動力相對更少。
You know, Don, maybe you just need to trust that hybrid cars are interesting enough ontheir own.
要知道，混合動力汽車本身就很有趣。
I mean, did you know that some hybrids rely on a process known as regenerativebraking to recharge their batteries.
我的意思是，你知道嗎？一些混合動力汽車依靠“再生式制動”來完成充電。
You see, when you brake, you remove energy from your car,which normally just dissipates in the form of heat.
一般的汽車剎車時，通常以散失熱量的形式損失汽車動力。
In some hybrids, though, the electric motor isused to slow down the car, at which time it also acts as a generator so it can divert some of thatenergy back to the batteries.
但是，混合動力汽車的電動馬達讓汽車減速，同時將這部分能量轉換成電能，充當發動機的功效。
And did you know?
另外，你知道嗎？
In hybrids, instead of idling, the gas engine turns itself off, and you getpower from the electric motor and batteries.
混合動力汽車發動機沒氣了，汽車并不會空轉，而是由電馬達繼續供能。
Also, hybrid cars'aerodynamic design and specialtires reduce both air drag and drag against pavement, which also increases efficiency.
此外，混合動力汽車采用氣流設計和特殊輪胎，從而減少空氣阻力和路面摩擦阻力，這也是混合動力汽車跑得快的原因。
Cool!
太贊了！
