Buy a Rubix Cube. This will be frustrating and fun. If this is too difficult, check out other mind challenging games in the toy section of a local department store to enjoy this mind challenge.
7.买一个魔方。这个游戏既好玩又会让你沮丧万分。如果魔方对你来说太难，那就去商场玩具专柜看看其他的挑战脑力的玩具。买一个你喜欢吧。