primary division短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 un.主要渔区；🌏初级；初级性；青年组 Students of the Primary Division of Shenzhen Experimental School sent a special gift to President Killian and his wife at the Citizen's Center on Thursday morning. 昨天上午的市民中心，深圳实验学校小学部的同学们为基里安夫妇献上了一份特殊的礼物。 sznews