1. Yet the soft and wet ground of a marsh serves an important purpose in nature.
    然而沼泽地潮湿、松软的土地在大自然里起着重要作用。

2. Listen, ´Karen Marsh: The latest.
    你听，"卡伦.最新消息。

3. It must be Karen Marsh, the actress.
    那一定是女演员卡.马会。

4. In a marsh, the surface water can sink slowly down through the soil into the rock below.
    在沼泽地里, 地表水会通过土壤慢慢地渗透到下面的岩层里。