Decide if you know a tile, then tap it to reveal — and be honest. Right: it turns green and you move to a neighbor. Wrong: you lose only your most recent tiles. Easy words in the middle, harder toward the rim.
← 主页 · home · 读书 · beginner · 生词卡 · flashcards · 北京有雨 · 醒着的人 · early intermediate →drag to pan · scroll or pinch to zoom · keys: ↵ knew it · ␣ missed · R replay · S star