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1. She was astonished by the sudden appearance of a rainbow over the horizon.
她对地平线上突然出现的彩虹感到惊讶。
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2. The astronaut's bravery in space is truly inspiring.
宇航员在太空中的勇敢行为真是令人鼓舞。
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3. The astronaut's journey to Mars has been an incredible adventure.
宇航员前往火星的旅程是一次难以置信的冒险。