8betme pg 电子

diàn zǐ electronic; electron (particle physics)

官方

guān fāng government; official (approved or issued by an authority)

免费

miǎn fèi free (of charge)

下载

xià zǎi to download; also pr. [xia4 zai4]

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

xev