The country's first act would be to recruit for the navy.

国家的第一个行动是为海军征募新兵。

《新英汉大辞典》

The first act takes place in 1898 at the time of the Qing dynasty.

第一幕发生在1898年的清朝。

youdao

The first act of the drama was over.

此剧第一幕到此结束。

youdao

For the first time she seemed to be taking a rest from the tiring act of thought.

VOA: special.2009.09.05

You could think of this as the poem's first -- by no means its last - its first act of poetic disobedience.

我们可以把这当做这首诗第一次--绝不可能是最后一次,-这首诗第一次违背诗歌规律。

耶鲁公开课 - 弥尔顿课程节选

Their first act of defiance is punished harshly.

他们首次的违背受到了严厉的惩罚。

耶鲁公开课 - 旧约导论课程节选

But the Sex Pistols, despite resurfacing over the years, were only his first act.

NEWYORKER: Take a PiL

He was the first act to hit the stage, performing for nearly three hours.

WSJ: Havens, 1st Woodstock singer, dies of heart attack

The first act of the drama was already down on paper, and it had a protagonist.

FORBES