At the meantime, English presents a number of issues to non-native speakers, such as verb tenses, irregular verbs, writing system, syntax and so on.
在此期间，英语对非本族语者提出了一系列问题，如动词时态，不规则动词，书写系统，语法等等。
A domain is a class or type and indicates the rules, syntax, and semantics for a piece of data (for example, it must be an integer, float, conform to a picture, and so on).
域是类或类型并表示数据的规则、语法及语义(例如，它必需是整型、浮点型、图片类型等等)。
It assumes that you are aware of what an HTML element or tag is, what an attribute means, the basic syntax of HTML markup, the general structure of a Web page, and so on.
假定您知道什么是HTML元素或标记、属性表示什么、HTML标记的基本语法、web页面的常规结构等等。
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