聚合果通常指由单花的许多离生雌蕊形成的一簇或一组小型肉质果，如悬钩子的簇生小坚果。

Aggregate fruit Usually applied to a cluster or group of small fleshy fruits originating from a number of separate pistils in a single flower, as in the clustered drupelets of the raspberry.

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北美洲的一种兰花，叶单生，花具有丝状反析花瓣。

North American orchid having a solitary leaf and flowers with threadlike petals.

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灰毛菊属的任何一种植物，产于欧洲南部，具有单生包片或银色的头状花序，管状花呈浅紫色。

Any plant of the genus xeranthemum native to southern europe having chaffy or silvery flower heads with purplish tubular flowers.

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So, you might have noticed that we will have spent about 6 and 1/2 lectures just getting to the point where we have only one electron, so we're only up hydrogen so far.

你们可能已经注意到了,我们已经花了６周半的时间,来仅仅是讲到单电子问题的情形，我们现在只研究氢原子。

麻省理工公开课 - 化学原理课程节选