沼泽, 湿地
an area of low-lying, uncultivated ground where water collects; a bog or marsh.
:
• The explorers had to trek through a dense swamp.
探险家们不得不跋涉穿过一片茂密的沼泽。
• Many unique species of plants and animals thrive in the swamp ecosystem.
许多独特的动植物物种在沼泽生态系统中繁衍生息。
