It's just an excuse for a party.

这只是借故一起聚会。

《牛津词典》

The government recognized there were problems in urban areas but these could never be an excuse for lawless behaviour.

政府认识到市区存在问题，但是这绝不能成为非法行为的借口。

《柯林斯英汉双解大词典》

Get back to peel these potatoes, and don't ever use that as an excuse for anything again!

回去削土豆皮，别再拿这个当借口了！

youdao

They say the Earps and Doc Holliday did not fire in self-defense, but used the law as an excuse for murder.

VOA: special.2010.02.15

Tajikistan ended its civil war becuase they were afraid they were returning to another Afghnastan Uzbekistan has striked for human rights record using as an excuse of the threat of the Islamic foundemantalism coming from Afghnastan.

因为害怕变成第二个阿富汗，塔吉克斯坦结束了内战,塔吉克斯坦结束了内战,乌兹别克斯坦利用人权作为借口,来阻止阿富汗的原教主义。

普林斯顿公开课 - 国际座谈会课程节选

He says if those with the least pollution start doing the most, rich nations will not have an excuse for inaction.

VOA: standard.2009.11.09

The decision process is neither easy nor quick, but that is not an excuse for shortcuts.

FORBES: Unlocking China's Consumer Power

An excuse for the promotional sharks, both bull and bear, and stir up the waters.

FORBES: Gold At $1,342 Is Taking A Breather

Some states require an excuse for absentee voting while others are moving toward no-excuse absentee balloting.

CNN: In voting, the early bird skips the line