趁狮子不在时取而代之者，却怕老鼠的存在。
随着时间的推移，用在保留人员在旧工作岗位上的支出需要减掉，取而代之的是为新岗位培养劳动者的支出。
As time goes by, spending on keeping people in old jobs will need to be cut, and replaced with spending on training them for new ones.
取而代之的是，管理者要足够灵活的处理已有的老式服务和新的服务。
Instead, regulators must be flexible enough to deal with both the old ways of doing things and the new.
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