“回”与“次”是现代汉语中使用频率最高的两个专用动量词。二者分布环境的叠合与使用范围的交叉促使我们就语言中动作的量化因素进行深入的思考。语义的重新调整对二者语法化过程的完成及相关的语法现象有着较强的解释力,语言的主观性左右着人们的动量选择。 “Back” and “second” are the two most commonly used verbs in modern Chinese. The overlapping of the two distributed environments and the scope of their use prompted us to think deeply about the quantitative factors of the actions in the language. The readjustment of semantics has strong explanatory power over the completion of grammaticalization and grammaticalization of the two languages, and the subjectivity of language influences people’s choice of momentum.