United States and Ukrainian officials held what both sides called productive talks on Sunday about a peace deal, with US Secretary of State Marco Rubio expressing optimism about progress despite challenges to ending the more than three-year-long conflict. 美國與烏克蘭官員週日就和平協議舉行了雙方均稱富有成效的會談。儘管結束這場持續三年多的衝突仍面臨挑戰，美國國務卿馬爾科·魯比奧對取得進展表示樂觀。 Rubio met with a Ukrainian delegation led by a new chief negotiator in Florida for talks that he said were meant to create a pathway for Ukraine to remain sovereign and independent. 馬爾科·魯比奧在佛羅里達州會見了由新任首席談判代表率領的烏克蘭代表團，他表示此次會談旨在為烏克蘭保持主權和獨立開辟道路。 "We continue to be realistic about how difficult this is, but optimistic, particularly given the fact that as we've made progress, I think there is ashared vision here that this is not just about ending the war," Rubio told reporters after the talks concluded. 魯比奧在會談結束后對記者表...