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，详情可参考Line官方版本下载
They were 200,000 miles above the Earth and closing in on their target when they needed to stir tanks containing vital oxygen and hydrogen.
ffmpeg -i file.mp3 -lavfi showspectrumpic=s=1200x600:mode=combined:color=viridis output.png这样就生成了 file.mp3 这个文件的频谱图，分辨率是 1200x600，生成的图片名字叫 output.png，使用的配色方案是 viridis。