再说一次，不用用光能量。

Once again, never completely use up your energy.

youdao

但无论孰对孰错，这都是一个极富吸引力的想法：为什么不能利用光合作用用回收二氧化碳的方法来取代直接将其排放到大气中的做法呢？

Whoever turns out to be right, though, it is an intriguing idea: instead of releasing the carbon dioxide produced by burning fossil fuels into the atmosphere, why not recapture it by photosynthesis?

youdao