Discourse markers are a linguistic component which does not exert any effect on the truth value of the Utterance but expresses attitudinal and procedural meanings.

• 摘要话语标记语是在语言中不影响句子真值、只表达态度或步骤意义的语言成分，是说话人为引导和制约听话人正确理解话语而选择的语言手段。