1.This bill helps to clamp down on loopholes that allowed people to receive benefits year after year whether they were planting crops or not.
clamp down on (对…)进行压制(或取缔)
When the President's position was threatened, he issued an order to clamp down on all anti-government activities.
当总统的地位受到威胁时,他下令取消一切反政府活动 。
The mayor had become ineffectual in the struggle to clamp down on drugs.
市长打击毒品的努力未见成效 。