He is very environmentally friendly, using both sides of the paper.
Examples (Wiktionary)
Mandarin
你会不会用电脑?
你會不會用電腦?
nǐ huì bù huì yòng diàn nǎo ?
Can you use a computer?
Mandarin
菩萨是农民立起来的,到了一定时期农民会用他们自己的双手丢开这些菩萨,无须旁人过早地代庖丢菩萨。
菩薩是農民立起來的,到了一定時期農民會用他們自己的雙手丟開這些菩薩,無須旁人過早地代庖丟菩薩。
pú sà shì nóng mín lì qǐ lai de , dào le yī dìng shí qī nóng mín huì yòng tā men zì jǐ de shuāng shǒu diū kāi zhè xiē pú sà , wú xū páng rén guò zǎo de dài páo diū pú sà .
It is the peasants who made the idols, and when the time comes they will cast the idols aside with their own hands; there is no need for anyone else to do it for them prematurely.