It seems like an act of monumental folly.

这似乎是一种非常愚蠢的行为。

《牛津词典》

Only an act of Congress could rectify the situation.

只有国会的法案才能扭转这种局面。

《柯林斯英汉双解大词典》

That is an act that no state or government apparatus can condone.

那是任何州以及政府机构都不能纵容的一种行为。

youdao

The United Nations Security Council has the lead responsibility for deciding that an act of aggression has taken place.

VOA: special.2010.06.21

The semiotician's answer to this is it never could have happened simply as an act of agency, as an act of will.

符号学者这样解释,这不是一己之力的结果。

耶鲁公开课 - 文学理论导论课程节选

This was an act of compulsion, and the poet had to be forced to press this lyric out of himself.

这是一个强迫性的行为,诗人被迫绞尽脑汁写出这首诗来。

耶鲁公开课 - 弥尔顿课程节选

Make no mistake, an attack on a diplomatic facility is an act of war.

CENTERFORSECURITYPOLICY: Freedom Flame 2013

With no armistice in effect, such an act would have been permissible under international law.

FORBES: How to Stop North Korea

This was not really a stroke of creative genius or an act of stunning originality.

FORBES: Thinking Twice About "Creativity"