Mypersonalopinionisthatthereisabuilt-inmechanism(机制)for...
问题详情：Mypersonalopinionisthatthereisabuilt-inmechanism(机制)forteenagerstostarttobeannoyedbytheirparentsataroundtheageof12whentheybecome“cool”.Theparents’reactionisthennegativebecausetheyarenowha...