这个游戏是对经典桌游的改编，加入了新的角色和规则。

This game is an ___adaptation of the classic board game, with new characters and rules added.

人类对高海拔环境的适应需要几代人的时间。

Human ___adaptations to high-altitude environments take several generations.

这部新电影是对经典小说的忠实改编。

The new movie is a faithful ___adaptation of the classic novel.