Right now, people are using the fourth generation bio-fuels.

如今，人们正在使用第四代生物能源。

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This so-called 'bio-gas' is burned like natural gas in a small electric power plant right on Vander Haak's farm.

VOA: standard.2010.02.23

So, my perfect pre-med/bio plan was getting a little shaken right from the start, and the reason that it was getting taken was because I would learn this new principal in chemistry and because I was taking bio with the same time, I could see the connections.

所以我的完美的医学预科,和生物学的计划，从一开始就小小的动摇了,原因就是我一边学习这些化学原理,一边学生物,我可以看到两者之间的关联。

麻省理工公开课 - 化学原理课程节选

So do the zero-growth, sustainable-growth, right-to-die, duty-to-die, life boat bio-ethicists who dominate so much of our intellectual discussion.

FORBES: Malthus and Scrooge: How Charles Dickens Put Holly Branch Through The Heart Of The Worst Economics Ever

However, the couple are adamant that any diesel car can run trouble-free with their advice and the right equipment, although new cars could have their warranty affected by using Bio-Fuel.

BBC: NEWS | UK | England | Devon | Dean ditches diesel for veg oil