线上

xiàn shàng online

赌博

dǔ bó to gamble

合法

hé fǎ lawful; legitimate; legal

吗

ma (question particle for "yes-no" questions)

mǎ see 嗎啡|吗啡, morphine

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

na88net zxo