材料是用文字、图像、动画、音频信号、视频信号或以上方式的综合表示出来。

The material can be presented as text, graphics, animated graphics, audio, video, or a combination of these.

youdao

材料是用文字、图像、动画、音频信号、视频信号或以上方式的综合表示出来。

The material can be presented as text, graphics, animated graphics, audio, video, or a combination of these.

youdao