名词
中文翻译：前形态学阶段
同义词：
['pre-morphological stage', 'pre-morphological phase']
例句：
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1. The studyof the premorphological stage is crucial for understanding the evolution of language.
研究前形态学阶段对于理解语言的进化至关重要。
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2.During the premorphological stage, the embryonic cells begin to differentiate into different types of tissues.
在胚胎形成初期，胚胎细胞开始分化成不同的组织类型。
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3.The premorphological stage is a critical period during which the development of the nervous system is heavily influenced by environmental factors.
前形态学阶段是神经系统发育受环境因素影响的关键时期。