hitch

hitch 表示故障，障碍，可与常见的obstacle和 hindrance 替换

积累句子：

A slight hitch can lead to a deadly disaster.

非常顺利地： without a hitch

法律难题/技术故障： legal hitch/ technical hitch 

翻译：

Jay Chou's concert was held in Beijing without a hitch.

场景：他终于得偿所愿，因为他顺利通过了GRE考试

例子：Finally， his efforts pay off,because he passed the GRE without a hitch.