... as falls within their sphere，属于他们分内的。 keep someone in line，控制住某人。 keep them in order，管理他们。 ...
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keep someone in line
让某人守规矩
以上为机器翻译结果，长、整句建议使用 人工翻译 。
It will be low because it will be necessary to have only one man looking after each job, without having another man to check upon what he is doing, keep him in line, and report on him to someone else.
行政管理费用降低的原因是：每项工作只需一个人去完成，用不着另外再有一个人检查他的工作，督促他遵守章程，或向有关人士汇报他的工作。
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