a particular point or stage in an activity or a series of events 特定时刻;关头 The battle had reached a crucial juncture. 战斗已到了关键时刻。 - at this juncture
At this juncture, I would like to make an important announcement. 此时此刻我要宣布一项重要的事情。
Word Originlate Middle English (in the sense ‘act of joining’): from Latin junctura, ‘joint’, from jungere ‘to join’.