juncture
/ˈdʒʌŋktʃə(r)/noun
1- a particular point in events or time（事态发展的）关头; 当口：
it is difficult to say at this juncture whether this upturn can be sustained.
在这个当口, 很难讲这种好转的情况是否能保持下去。
1.1
- a place where things join交接处; 接合点, 接缝, 连接, 交界：
the plane crashed at the juncture of two mountains.
飞机在两座大山的交界处失事了。
1.2
- Phonetics the set of features in speech that enable a hearer to detect a word or phrase boundary (e.g. distinguishing I scream from ice cream)【语音】音渡（一组使听者能分辨出单词或词组界限的语音特征, 如区分I scream 和ice cream）。
词源
late Middle English （in the sense 'act of joining'）： from Latin junctura, 'joint', from jungere 'to join'.