scummy

The pond water looked scummy after the heavy rain washed in dirt and leaves.

大雨把泥土和树叶冲进来后，池塘水看起来满是浮渣。

This scummier corner of the lake is full of green algae.

湖的这个更脏的角落长满了绿色藻类。

The pool filter removed the scummiest layer of oil and dust from the surface.

泳池过滤器去除了水面上最厚的那层油污和灰尘。