centering是什么意思？

centering[英]['sent?r??][美]['sent?r??]n.置于中心，定中心; v.居中; 集中( center的現在分詞 ); 使聚集在一點; 定中心; 例句:1.Spielberg's early sci-fi and adventure films sometimes centering on children, were seen as an archetype of modern hollywood blockbuster filmmaking. 斯皮爾伯格早期的科幻與冒險電影，作為一個現代好萊塢大片電影原型。