stumbling
['stəmblɪŋ]
adj.
摇摇晃晃或跌跌撞撞的;
v.
（不顺畅地）说( stumble的现在分词 );
跌跌撞撞地走;
绊脚;
（说话、演奏等）出错;
例句:
-
Casting, however, was the main stumbling block.
来自WSJ
-
The question of disarmament proved a major stumbling block to agreement.
结果证明裁军问题是达成协议的主要障碍.
-
Perhaps the major stumbling block to reunification is the military presence in South Korea.
也许实现统一最大的绊脚石是驻扎在韩国的军队。
-
His stumbling attempts at colloquial Russian amused her.
他结结巴巴地学说俄语，把她逗乐了。
-
The Heisenberg uncertainty principle was the main stumbling block.
来自SA
-
We were groping and stumbling along a deep ditch.
来自S. Sassoon