Researchers found that a spray of a solution containing thidiazuron, or TDZ, kept leaves and petals looking fresh and healthy for days longer than usual.

研究者们发现，这种喷雾中含有一种叫“脱叶灵”的物质，也可以称作“TDZ”，它可以使叶子和花瓣看着比它们能保持的时间更新鲜。

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In a new trial at the Mount Sinai School of Medicine in new York, researchers are investigating the use of a nose spray containing a brain chemical called neuropeptide.

纽约西奈山医学院进行一项新的试验，研究人员调查含有神经肽鼻喷剂的使用情况。

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Spray insect repellent containing DEET on clothes and on exposed skin other than the face.

在衣服及除脸以外暴露在外界的皮肤上喷抹含有DEET的驱虫剂。

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Fehr went a step further with the same experiment, finding volunteers who were willing to take a blast from a nose spray containing the hormone oxytocin, which is involved in pregnancy and appears to help facilitate social bonds.

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