logjam

详细解释:n. 拥挤, 行不通, 为许多圆木材所阻

英语解释：

名词 logjam:

any stoppage attributable to unusual activityan immovable mass of logs blocking a river

详细解释：

log.jam

n.（名词）
An immovable mass of floating logs crowded together.
木材堵塞：一堆挤在一起的、无法移动的飘浮的原木
A deadlock, as in negotiations; an impasse.
僵局：僵局，如在谈判中的；死路