6月3日，1964年，爱德华·怀特成为第一位美国宇航员执行太空行走，否则作为舱外活动(EVA的已知)，外面双子座四胶囊去20分钟。

On June 3, 1964, Edward White became the first American astronaut to perform a spacewalk, otherwise known as an extra-vehicular activity (EVA), going outside this Gemini iv capsule for 20 minutes.

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