基本解释学龄前儿童同根派生 preschoolers相关词英汉例句The English program is directed at preschoolers.这个英语节目是针对学龄前儿童的。This delicate picture book is suitable for preschoolers to read.这本精美的图册适合学龄前儿童阅读。preschoolers更多例句