In hilly Seattle, the prospect of a hybrid that could climb like a diesel but accelerate without belching black fumes helped justify a price $200,000 higher than that of a regular bus.

• 在多山的西雅图，能够像柴油机那样上下行驶，加速时又不冒黑烟这样的混合动力车比普通汽车高出200，000美元的价位还是合理的。