This difference may stem from improved nutrition or other environmental factors.
这种差异可能来自于营养的改善或其他环境因素。
2
I laugh. I say it's important but I'm not sure it will make a difference to remind people of the environmental ravages of driving.
我笑了，我告诉他那当然是重要的，但是即便告诉人们开车对环境的影响也不会导致任何改变。
3
Analysing the difference of traditional value chain and environmental value chain, we propose that the latter is a better valuation method facing product life cycle.