The studies are far from definitive, but some suggest that too much of vitamins A, C, E and folic acid can be risky for some people.

这些研究并非权威性的,但认为过多的维生素A、C、E和叶酸对于某些人可能有危险。

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The researchers basically amplified and then short-circuited E. coli's internal machinery for producing large fatty-acid molecules, enabling them to convert precursor molecules directly into fuels.

研究者从根本上放大并缩短了大肠杆菌产生大分子脂肪酸的内部机制，是的他们能够直接将前体分子转化为燃料及其他化学品。

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Dr Wang has managed to reassign one of the stop codons in E. coli, the bacterial workhorse of geneticists, to recognise an unnatural amino acid.

王博士已经成功的让大肠杆菌(遗传学家的常用工作菌种)中的一个密码子重新分配去编码一个非自然氨基酸。

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However, exercise had a much greater effect on animals that were also given the supplement amino acid L-argenine, and antioxidant vitamins C and E.

BBC: Exercise is good for health

This week ARPA-E announced it is funding General Atomics to build a flow battery using well-known, and cheap, lead acid chemistry.

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