Of course, the US will invariably face new challenges, all of which are on vivid display in Ukraine. Countries will be torn between retaining their security ties to the US and building new economic linkages with China.
当然，美国将一直面临新挑战，乌克兰就是明证。各国将在维持与美国的安全联系以及构建与中国的新经济联系之间权衡。让美国利益牵涉其中的复杂的全球体系将考验美国外交。