美国扩大对俄罗斯的制裁，以阻止诸如中国等国家与莫斯科开展业务。G7领导人准备在意大利举行峰会，主要任务是增加对乌克兰的支持，削弱俄罗斯的战争机器。

The United States widened its sanctions against Russia Wednesday as G7 leaders prepared to gather in Italy for a summit where top priorities will be boosting support for Ukraine and grinding down Russia’s war machine.