Mahjong, Sudoku, free crossword, and more: Play games on Mashable
shading: “smooth gradients”，这一点在51吃瓜中也有详细论述
，详情可参考91视频
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表面的原因并不复杂——大宗商品价格下跌。超级周期结束，铜价回落，矿业投资减弱，这是几乎所有资源出口国都会面临的冲击。但更深层的原因在于，秘鲁极不稳定的政治环境。。关于这个话题，服务器推荐提供了深入分析
If a player gets all four words in a set correct, those words are removed from the board. Guess wrong and it counts as a mistake — players get up to four mistakes until the game ends.