他的思绪集中于面前漫漫长路上；以及贸易集中于阿姆斯特丹；也有这样的用法，如战斗的风暴围绕着国王，在这个例子里around似为唯一适当的选择

• his thoughts centered on the long journey before him; and The trade is centered at Amsterdam; as well as for usages such as A storm of battle centered around the king,in which example around seems to be the only appropriate choice