一周以前，在一次业界赞助的生物能会议上一名从事藻类项目的工程师大卫·哈伯曼谈到了风险警报。
A week earlier, at an industry-sponsored bioenergy conference, David Haberman, an engineer who has worked on an algae project, gave a talk warning of risks.
一周以前，在一次业界赞助的生物能会议上一名从事藻类项目的工程师大卫·哈伯曼谈到了风险警报。
A week earlier, at an industry-sponsored bioenergy conference, David Haberman, an engineer who has worked on an algae project, gave a talk warning of risks.
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