萤火虫项目是一种单旋翼直升机，使用美国混合动力(US Hybrid)公司制造的电池。
It's a single rotor helicopter powered by batteries made by US Hybrid.
丰田在美国史最大的混合动力车汽车商。
Toyota is the biggest seller of hybrid vehicles in the U.S..
比亚迪年内将在美国开始销售电动汽车，2011年在欧洲销售混合动力和电动汽车。
BYD will begin selling electric cars in the U.S. this year and both hybrids and electrics in Europe by 2011.
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