For Advanced English Learners.
He tramped up the stairs to his room, went inside, and tipped his books onto his bed.他脚步沉重地上楼回到自己的房间，把新买的书都倾卸到床上。
trudge: walk slowly and with heavy steps, typically because of exhaustion or harsh conditions
plod: walk doggedly and slowly with heavy steps
stamp: bring down (one's foot) heavily on the ground or on something on the ground.