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1.The study of psychosexual development is crucial for understanding human behavior.
研究心理性欲发展对于理解人类行为至关重要。
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2.As a child, she was very interested in exploring the world around her and developing her psychosexual skills.
作为一个孩子，她对探索周围的世界和培养她的心理性欲技能非常感兴趣。
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3. The research on psychosexual development has significant implications for counseling and therapy.
关于心理性欲发展的研究表明，这对咨询和治疗有重大影响。