造成核心员工离职的原因有客观因素也有主观因素，企业应采取相应的措施来留住人才，减少离职带来的成本。
There are objective and subjective reasons for it, and enterprises should take corresponding measures to retain talented people and reduce costs brought by severance.
影响记忆效率的既有主观因素，又有客观因素。
The factors that influence the efficiency of memory include both subjective and objective ones.
中学生考试心理问题的成因有主观因素和客观因素，表现在考试认知、考试情绪和考试适应性等几个方面。
The psychological problems in testing has both objective and subjective causes, and such problems can be denoted in cognition, mood and adaptability of testing.
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