拉开序场
[lā kāi xù chăng]
'拉開' translates to unfold/open/draw apart while '序場' (which is originally Japanese but used commonly in Chinese now) stands for prologue/preamble. Combinedly, it expresses the idea of unfolding/preparing to start a new phase, event, journey etc. It could refer literally on stage performance preparation or metaphorically a new beginning