这个词是什么意思？
The psychic drive or energy associated with sexual instinct in the broad sense (pleasure and love-object seeking). It may also connote the psychic energy associated with instincts in general that motivate behavior.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D007989 · MeSH 2026。
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