其余的将使用全电或者部分电和电池驱动，或者运用一些更新的完善的技术。
The rest will be electric cars running on full or partial battery power — or some new, yet-to-be-perfected technology.
油电混合动力并不是全电动汽车的唯一可用选项。
Petrol-electric hybrids are not the only alternative to all-battery cars.
在全电模式下，通用公司的这款汽车预计行可行驶50英里(合80公里)，足以满足大多数美国通勤者的需求，这样他们只在跑长途的情况下才需要使用汽油发动机。
GM's car is expected to go around 50 miles (80km) in all-electric mode, more than enough for most American commuters, who would need to use the petrol engine on longer trips only.
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