知识扩展
习语积累
习语 n. make inroads into/on sth 消耗，削弱，影响（某事物） if one thing makes inroads into another, it has a noticeable effect on the second thing, especially by reducing it, or influencing it Tax rises have made some inroads into the country's national debt. 增加税收已使国债有所减少。
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