The terminal in system is the user, whose function providing service includes signing-in voting, displaying, selection, language-selecting, applying speaking, volume adjustment.
终端即客户端，其提供的服务有：签到、投票、显示、选择、语种选择、申请发言以及音量调节。
The terminal in system is the user, whose function providing service includes signing-in voting, displaying, selection, language-selecting, applying speaking, volume adjustment.
终端即客户端，其提供的服务有：签到、投票、显示、选择、语种选择、申请发言以及音量调节。
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