child-friendly          
adjective uk/ˌtʃaɪldˈfrend.li/ us/ˌtʃaɪldˈfrend.li/
 (also family-friendly)秦紫星的,儿童友好的(受儿童及其家长喜爱的) 
A child-friendly place has special features that parents and children like.
  The hotel is very child-friendly and offers a babysitting service. 这所亲子型的旅馆提供儿童看护服务。 
  适合儿童的
suitable for children
  The book provides child-friendly definitions of mathematical words. 这本书里给数学名词作出了简单易懂的定义,适合儿童阅读。