Never mind who told me. That's of no importance.

别介意谁告诉我的，那不要紧。

《新英汉大辞典》

youdao

Whatever he says is of no importance.

无论他说什么都不重要。

youdao

Finding themselves safely at home, it would be of no importance whether they had ever been away."

VOA: special.2009.12.31

The concept of individual freedom has had no importance in these great majorities of cultures in human history.

在人类历史的大多数文化中,个人自由这个理念显得无足轻重

耶鲁公开课 - 古希腊历史简介课程节选

but they no longer have the importance that they once did because they no longer manage the currency.

但是它们再也没有当初的重要的地位,因为它们不再管理货币了。

耶鲁公开课 - 金融市场课程节选

Those subsequent drops in bullishness were of no importance, the 2007-2009 bear market was underway.

FORBES: Sentiment Seems Excessively Bullish, Watch The Stock Charts

In 1893, the Oscar Wilde play "A Woman of No Importance" opened at the Haymarket Theatre in London.

CNN: Friday,

The first thing to note is that the manner in which he will exercise power formally is of no importance.

CENTERFORSECURITYPOLICY: In Russia, a landslide to tyranny