Publicize the concept of "green living" natural right, worthy of emulation, but we can not insist on a mule-generation cattle plowing, can not let the sheep producing milk. Similarly, do not let burn coal are difficult people to burn more expensive natural gas, hydrogen?

The "green living" as promoted by natural philosophy is correct, it is worth emulating, but we must not hard to mule to plow cattle, we cannot let sheep producing milk. Similarly, we cannot afford to let coal burning has been difficult for people to burn 100 more expensive natural gas, hydrogen gas?

“The green life” propagandizes the idea is naturally correct, is worth imitating, but we cannot insist the mule to go to the generation of cow plow place, also cannot let the sheep produce the milk.Same, also cannot let the bunker coal all have the difficulty common people to reduce fever a more exp

"Green life" concept of publicity is of course correct, exemplary, plow but we cannot insist on a mule to cattle or sheep milk. Similarly, nor difficult people to burn for burning coal more expensive natural gas, hydrogen, right?

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