adj.陷入泥沼的；陷于困境的
動(dòng)詞bog的過(guò)去式和過(guò)去分詞形式.
A caterpillar tractor is tugging along the truck that has bogged down. 履帶式拖拉機(jī)在拖那輛陷入泥沼的卡車。
