There are infiltration center on lava and agglomerates.在熔岩或集块岩上有渗漏中心存在.Aetna center on the second floor to take a look at it!安泰中心二楼去看一看吧!Our business center on second floor has computers, fax machines, and secretaries.我们...

以…为中心，重点在于…，主要与…有关...

center on的音标：center on的英式发音音标为：['sentə ɔn]center on的美式发音音标为：['sɛntɚ ɑn]...