qǐng / bú / yào / bèi / duì / guān / zhòng / jiǎng / huà / zhè / yàng / dà / jiā / tīng / bù / qīng / chu

请不要背对观众讲话，这样大家听不清楚。

Please do not speak with your back to the audience, because they cannot hear you clearly.