quagmire

详细解释:n. 沼泽地, 泥坑, 泥潭, 泥沼, 沼泽, 困境
相关词组:
be bogged down in a quagmire

英语解释：

名词 quagmire:

a soft wet area of low-lying land that sinks underfoot同义词：mire, quag, morass, slack