Many are microphones, and you can come to the venue earlier to test on your voice volume. Other equipment use can be poster, visual AIDS.
通常指的是麦克风，参赛者可以提早到达比赛场地测试音效，其他的还有挂图以及视觉辅助器材。
Many are microphones, and you can come to the venue earlier to test on your voice volume. Other equipment use can be poster, visual AIDS.
通常指的是麦克风，参赛者可以提早到达比赛场地测试音效，其他的还有挂图以及视觉辅助器材。
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