verb · to open or unfold something (such as a box, book, or a ticket to show it)

请把书打开，翻到第五页。

verb · to switch on or activate an electronic device, light, or appliance

天黑了，请把灯打开。

verb · to break a deadlock, initiate a new phase, or create a new situation in work or a struggle

经过多年的努力，公司终于打开了局面。