To the rear, the camp was protected by the river and marshy ground.

而营地的尾部则有河流和沼泽保护。

youdao

This paper makes a suggestion of "restoring marshy ground water environment and building harmonious natural ecology" to get the catastrophes under control.

为此，笔者以“恢复湿地丰水环境、营造和谐自然生态”为目标，阐述对湿地灾变的防治意见。

youdao

Over the years the lake began growing over and on its site developed gigantic marshy ground, a self-sustained reservoir which can feed itself just with rainfalls.

多年以来，湖泊开始越来越多，并在其基础上侵占着巨大沼泽地面，自我维持的水库，单凭着降雨就足以维系。

youdao

The three-mile stretch between the towns of Tresaith and Llangrannog can be slow going, due to several steep climbs and some uneven and marshy ground.

BBC: Walking the new Wales coastal path