第二章从概念(包括数量及人员构成)、特征及负效应分析三个方面，对我国城镇低收入阶层进行了概述。
In chapter two, it gives a brief account of the present situation of Chinese urban low-income stratum from concept (including quantity and composition), characters and analyses of negative effects.
此章主要分析了社会分层研究中的两个重要概念——阶级和阶层。
The chapter analysed two important concepts of the study of social stratification, class and stratum.
首先介绍国外语言学界对于论元、论旨角色、论元位置、论元结构、论旨阶层等概念的定义和认识。
Firstly, it introduces some concepts related to argument structure in linguistics abroad, and proposes the contents of the studies of argument structure of verbs in Chinese.
与权力相联系的阶级概念受到阶层与利益团体概念的挑战；
The idea of class associated with power has been challenged by stratum and interest group.
其次是界定了阶级与阶层、中间阶层、中产阶层与中产阶级、社会资源等概念。
Secondly, the part defines some concepts, such as class, stratum, intermediate stratum, middle stratum, middle class, social resource, etc.
本部分文案主要是将BOBO的人群特点，用概念化的方式表达出来，以阶层特色和吸引力来达成消费者的认可与关注。
This section mainly shows the characteristics of BOBOs in the way of conceptualization, and achieve recognition and attention of consumers with the class features and attractions.
向高阶管理阶层和零售商简报产品线、概念及设计。
Present product line, concepts and designs to senior management and retailers.
向高阶管理阶层和零售商简报产品线、概念及设计。
Present product line, concepts and designs to senior management and retailers.
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