暴雨过后，河边的泥地变得又黏又滑，很难行走。

After the storm, the riverside became ___sludgy and slippery, making it hard to walk.

这段音乐有着厚重的贝斯线和缓慢的节奏，听起来特别沉闷浑浊。

The music has heavy bass lines and slow tempo, sounding incredibly ___sludgy.