irrelevancy
n. 离题;无关之事物;不合时宜
复数 irrelevancies
例句
The fear of irrelevancy will haunt European leaders in 2010.
2010年欧洲领导人缠身于其他不相干事物.他们制定了新的法规:里斯本条约。
But stretch a topic too far and usually it will collapse into irrelevancy.
但若是扩展太远,往往因为离题而写出失败的文章。
That I am trapped in this particular irrelevancy is never more apparent to me than when I am home.
这个不相干的问题困扰着我,在我返回老家后尤为明显。