To be hesitant to act decisively against an undesirable element for fear of harming something valuable or causing unintended negative consequences; to have scruples about taking action.
在处理公司内部的一些复杂问题时，管理者常常会有投鼠之忌，既想解决问题又怕影响员工士气。
When addressing some complex internal issues within the company, managers often experience the scruples of striking a rat, wanting to resolve the problem but also fearing its impact on employee morale.
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