indistinguishably造句怎麼寫

Ethanol output has more than doubled since 2002, thanks to the development of flex-fuel engines for cars, capable of running on either petrol or ethanol indistinguishably.

Which the elation of liberty and the pain of exclusion were indistinguishably mingled.

We drew in deep breaths of it as we walked back from dinner through the cold vestibules, unutterably aware of our identity with this country for one strange hour, before we melted indistinguishably into it again.