adj.有圆心的,居中的
v.集中( center的过去式和过去分词 ),使聚集在一点,定中心,居中
All his attention has centered on that experiment.
他的全部注意力都集中在那个实验上.
His whole mind , his whole being, was centered in revolution.
他的整个身心都放在革命上.
The discussion centered around four subjects.
讨论围绕4个主题展开。