I gave one glance at the black scum on top of the water, and decided to go dirty for the day.

我瞥了一眼水面上漾着的那层发黑的泡沫，就打定主意这一天就脏着脸过了。

youdao

Floating on top of the greenish pool - a mixture of 70% water from the Dead Sea and 30% water from the Red Sea - is a white scum of algae.

绿色的池面(由70%的死海水和30%的红海水混合而成)上，漂浮着一团白色的藻类。

youdao

Floating on top of the greenish pool - a mixture of 70% water from the Dead Sea and 30% water from the Red Sea - is a white scum of algae.

绿色的池面(由70%的死海水和30%的红海水混合而成)上，漂浮着一团白色的藻类。

youdao