1 sentence for 幕 (mù — act)

1. 这部话剧一共分为三幕，讲述了一个动人的故事。

   zhè bù huà​jù yī​gòng fēn​wéi sān mù, jiǎng​shù le yī gè dòng​rén de gù​shi.

   This play is divided into three acts and tells a moving story.

   Source: Dong Chinese Dictionary