打开

dǎ kāi to open; to show (a ticket); to turn on; to switch on

：bb77net BG 电子

diàn zǐ electronic; electron (particle physics)

平台

píng tái platform; terrace; flat-roofed building

介绍

jiè shào to introduce (sb to sb); to give a presentation; to present (sb for a job etc); introduction

打开

dǎ kāi to open; to show (a ticket); to turn on; to switch on

：bb77net BG 电子

diàn zǐ electronic; electron (particle physics)

平台

píng tái platform; terrace; flat-roofed building

介绍

jiè shào to introduce (sb to sb); to give a presentation; to present (sb for a job etc); introduction