这家父母希望他们孩子能跳级到二年级: the parents want their child to skip to the second grade
儿童: children 短语和例子无辜的儿童 an innocent child; 未满5岁儿童免费。 children under five years of age are not charged.; 儿童保健费 health subsidies to children; 儿童保健服务机构 child health services; 儿童保育事业 child care; 儿
