单词阶梯

游戏指南

游戏概览

单词阶梯目标：每一步只改一个字母，并保证中间结果都是有效单词。实例为 CAT → COT → COG → DOG。

操作方式

单词阶梯操作：方向选择并用 OK 确认；观察 CAT→COG changes two positions。

计分与进度

单词阶梯计分：有效新答案加分，关键奖励是 three valid rungs。

技巧建议

单词阶梯策略：先分析 work backward from DOG，再提交当前答案。阶梯从 CAT 出发，每一层只允许一个位置变化。CAT 到 COT 合法，直接跳到 COG 会同时改两个字母；可从 DOG 反向寻找共享两个字母的桥接词。 英文练习注释：The displayed rungs make letter-by-letter transformation visible, turning vocabulary into route planning through a tiny implicit graph. Only one indexed position changes at a time, so CAT to COT is legal while CAT to COG skips a required intermediate edge. A direct arrival receives more credit than wandering because every extra valid word is still a detour from the stated destination. Matching the target's final letters early can be tempting, but a bridge must also connect backward to the current spelling. Runtime state names the present rung, destination, and move count, which lets automated checks distinguish genuine graph progress from animation.

移动端玩法

单词阶梯手机玩法：大按钮完成选择；文本状态显示 state.rung and moves。