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 |