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Changes in the stock market are, of course, highly un -predictable.

股票市场的化当然是幻莫测。

NG2-73 selectiely modulates receptors of the gamma-aminobutyric acid (GABA) neurotransmitter system and is one of seeral un partnered compounds in Neurogen's portfolio.

NG2-73是GABA能神经受体的选择性调节剂，本项目暂无其他合作开发伙伴。