Much easier to keep a flask of cells under very sterile, very reproducible conditions than it is to keep a small animal, right?
保存一小瓶细胞,该细胞可在无菌条件下再生,这要比保存小动物容易的多
and use things such renewable energy, putting up wind and solar and biomasses, et cetera,
推广可再生能源的使用,推广风能,太阳能,还有生物质能等等新能源的使用,
And steel is the most recycled material.
钢铁几乎是其中最可再生的材料。
I think, so potentially around renewable energy.
应该是有关可再生能源方面的政策制定吧。
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