It was covered with tall trees and the swamp was a crystal-clear river.

那里覆盖着高大的树木，沼泽是一条清澈的河流。

youdao

When I use my feet and walk on a grass covered path along a river or among the hills I feel detached from the noise of the city and closer to the nature.

当我沿着河流或在群山之间走在一条青草覆盖的路上时，我觉得我远离了城市的喧嚣、亲近了自然。

youdao

No victims were reported but the explosion was heard throughout the town and across the river in Argentina, and a foul odour covered the plant’s immediate surroundings.

没有出现人员伤亡的报告，但是整个城镇以及河对岸的阿根廷都能听到爆炸声，同时，离工厂最近的周边区域都被臭气缠绕。

youdao

It lies between sand hills covered with pine trees and rich farmland near the Mississippi River.

VOA: special.2010.01.03

Crossing downtown Seoul is the Cheonggye stream -- a river that was covered by a road until it was unearthed in 2005 and transformed into one of the city center's most popular urban oases and worth a stroll in the evening.

CNN: Look into your Seoul for a hit of Korean flavor

In western Wisconsin, an articulated lorry slid off a snow-covered highway and into the Red Cedar River, killing one person.

BBC: Snowstorm strikes US Midwest on way to east coast

Perhaps the most famous example is the Cuyahoga River, which was so covered with pollution and industrial waste that in 1969 it literally caught fire.

WHITEHOUSE: Blog Action Day: Protecting America��s Waters Today