Which one costs me more gas? Using an Air conditioner or open windows?

哪个更费油？开空调还是开车窗？

youdao

In the summer set the air conditioning temperature slightly higher or open Windows and use fans.

在夏天，把空凋温度设置得稍高一些，或者开窗、用凉扇。

youdao

youdao

The first, called Ease, is a mere foot in diameter by 16-inches tall and can fly safely in tight spaces or through open windows or doors, thanks to its petite size and ducted rotors.

ENGADGET: CyPhy Works reveals tethered flying bots that can spy on you indefinitely (video)

Normally I have five or six browser windows open on two screens of my computer, plus the phone on the desk.

FORBES: Hurricane Irene Sparks An Electronic Counterattack

Police distributed leaflets advising people who live on the streets where the Pope is expected to proceed not to open windows or leave their homes.

CNN: Pope's Ukraine visit stirs protest