deadfall

详细解释:n. 陷阱, 倒下的树木

详细解释：

dead.fall

n.（名词）
A trap for large animals in which a heavy weight is arranged to fall on and kill or disable the prey.
陷阱：用来捕获大动物的陷阱，其中准备重物落下并杀死或使猎物就范
A mass of fallen timber and tangled brush.
一堆倒下的树木和杂乱的灌木