对于小学生来说，希金波坦可能会讨论一个很多孩子都想知道的问题。
To elementary school children, Higginbotham may discuss a problem that many kids want to know about.
当美国女宇航员琼·希金波坦不在太空飞行和工作时，她也许在地球上的某个地方发表演讲。
When US spacewoman Joan Higginbotham is not flying and working in space, she might be found somewhere on earth giving a speech.
希金波坦在芝加哥长大，在加入美国国家航空航天局之前他是一名工程师，每年举办大约12次演讲。
Higginbotham, who grew up in Chicago and became an engineer before joining NASA, that is the National Air and Space Administration, gives about a dozen speeches a year.
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