乐天

lè tiān carefree; happy-go-lucky; optimistic

使

shǐ to make; to cause; to enable; to use; to employ; to send; to instruct sb to do sth; envoy; messenger

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 乐天

lè tiān carefree; happy-go-lucky; optimistic

使

shǐ to make; to cause; to enable; to use; to employ; to send; to instruct sb to do sth; envoy; messenger

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