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But biofuels are carbon-neutral.In other words,the volumn of greenhouse gas they released as it is burning matches that taken up by the plant when it was growing .
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因为生物能源是碳平衡的,他们释放的温室气体和他们在生长中吸收的气体是一致的。而化石能源就相反。 |
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But biological explanations of human behaviour are making a comeback as the generation of academics that feared them as a covert way of justifying eugenics, or of thwarting Marxist utopianism, is retiring.
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但是用生物学来解释人类行为的思潮正卷土重来,而那一代害怕这样做会暗中给优生学辩护或者阻挠马克思主义空想的学者已经退休了。 |
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But biology contradicts this arrogance.
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但是生物学反驳了这种傲慢的心态。 |
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But biotechnology will also become a game that almost anyone can play—for fun or profit; recklessly or responsibly; for good or ill.
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但生物技术也由此可能成为人人皆可参于的游戏,而这些人目的各不相同:为乐趣或为利润,有人冒冒失失有人胸怀责任,有人用心良苦也有人居心叵测。 |
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But birth out of wedlock remains taboo and heavy-handed enforcement of China's one-child policy, including forced abortions, is common in poor rural areas, rights groups have said.
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人权团体称,中国政府对于已婚夫妇生育的政策依然非常严格,坚持其一对夫妇只生一个孩子的政策;强制坠胎在贫穷的边远地区依然非常普遍。 |
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But blogger Hossein Derakhshan says there is no reliable online translation program for Persian.
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但却没有一个可靠的波斯文网上翻译工具。 |
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But bloggers made sure the story was on the Web.
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而报纸既不报道有关案件调查的进展,而电视也没有及时报道。 |
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But blogging is no longer a niche pastime, the preserve of techies and hacks.
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但是,写博客日记已不再是一种小范围的消遣活动,不再是技术人员和黑客的保留地了。 |
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But bomb builders remained skeptical: Building a nuclear bomb involved more than equations on paper.
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但炸弹建设者仍然怀疑:建设一个原子弹涉及多于方程在纸面上. |
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But both banks are deeply rooted in retail and commercial banking too.
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同时,两家银行均以零售和商业银行业务为基石。 |
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But both behavioral therapy and working memory training require diligence and patience from parents, teachers and therapists.
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不过,不论行为治疗和工作记忆训练,都需要父母、师长与治疗师的耐心和全心投入。 |