too simple too young

基本解释

Too simple, too young, or just a moment impulse, Cola felt pity always towards Red Bottle.
他心里一直内疚于那一刻自己指甲的力度，年少无知也好，一时冲动也好，可乐一直觉得很遗憾。
whoami551.blog.163.com
Many in today's aging society are now too young to remember that simple pleasures were inexpensive (and sustainable) during the years of post-World War II austerity.
当今的社会年龄结构中，很多人都太年轻，所以不记得在二战后那段朴素岁月里简单的愉悦都很便宜（而且可持续）。
I wanna give her a gift -- a sudoku game, but she is too young to play the real sudoku, so I wanna make a simple one.
我希望给她一个礼物————数独游戏，但是她不可能玩真正的数独，只能是一个简单的适合儿童的数独。

My kids have entered that nebulous no-mans-zone known as the middle grade (or tween) years: too old for simple chapter books (like The Magic Tree House series), but too young to demolish YA books about vampires by the dozen.
FORBES: Not Ready for Vampires? Laurel Snyder Writes Great Books for Tweens