class="break-all text-fw-blue-primary hover:underline hover:underline-offset-4">#环球雅思口语时间# 【常用动词短语】crack down class="text-red-500">class="text-red-500">on: 制裁,镇压: To make a strclass="text-red-500">class="text-red-500">ong effort to reduce something. 例 For example, police in Shanghai are especially cracking down class="text-red-500">class="text-red-500">on card scammers during internaticlass="text-red-500">class="text-red-500">onal events.