Lumber consists of trees and large pieces of wood that have been roughly cut up. 木材
verb [vi. 不及物动词] 缓慢地移动，笨拙地行走；迫使担负（工作或责任）；<美>伐木；逢场作戏地结识；乱堆
He lumbered back to his chair. 他蹒跚地坐回到椅子上。
noun [物质名词] 木材；<英>废旧家具，废旧大件杂物；被看作可能成为性伴侣的人
It was made of soft lumber, spruce by the look of it. 它是软木做的，看样子是云杉。
