第一阶段；初始阶段
先理解核心含义，再看它在真实句子里的用法。
第一阶段；初始阶段；第一阶段；初始阶段
the initial stage or period of a process or project
The first phase of the project involves market research.
项目的第一阶段包括市场调研。
第一阶段；初始阶段
the initial stage or period of a process or project
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Dictionary facts from AI_SUPPLEMENT.