My assistant will now demonstrate the machine in action.

现在我的助手将演示机器运转情况。

《牛津词典》

The military machine is ready to change its defensive posture to one prepared for action.

军事当局已准备从防御态势变为备战态势。

《柯林斯英汉双解大词典》

This is the only action that needs to be manually performed at each machine.

这是每台机器上需要手工执行的唯一操作。

youdao

She heard the sound of the sewing machine clattering into action.

NEWYORKER: The Visitor

The action has shifted from one machine to many, a network of sales, services and information-sharing.

FORBES: Magazine Article

Like Harmison, Johnson sometimes gives the impression that his best spells almost happen by happy accident, his action less well-oiled machine than a randomly-firing weapon.

BBC: Ashes: Mitchell Johnson is fired up for Test series