River Crossing Troll is extend of River Crossing IQ
操作說明：
- 單擊按鈕“ Gcoins”：打開答案或購買GCOINS
- 單擊按鈕“共享”：捕獲屏幕並共享Facebook
- 單擊按鈕“排名”：查看頂級10 Hight IQ。
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