hammer home
再三强调到彻底了解
hammer是「铁植」，当动词则表示「植打」。hammer home字面上是说在钉钉子的时候用力敲击，让钉子完全嵌 入、钉牢。比喻「三令五申、以各式手法强调」，让对方完全 了解，不易忘记。
By the time Congress returns from its two-week recess next Monday，about 35 Cabinet members and other Administration officials will have taken part in 70 health-care events across the country. The goal behind this burst of activity: to hammer home five simple points about the Presidents health-care plan in language many Americans have not heard before.(出自：TIME，Apr. 11，1994，p. 40 )
下周一，国会两周的休会结束时，大约三十五位内阁阁员与其他 政府官员在全国各地应该已经出席了七+场有关医疗保健的活 动。这一连串活动的目标是要用许多美国民众没听过的话语，使 民众彻底了解统的医疗保健计划中的五个简单要点。