自从2010年5月加入公司，参加了20多个专案，的翻译：Since May 2010, joined the company, took over more than 20 projects, 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Since joining the company in May 2010, participated in more than 20 project

Since May 2010, joined the company, took over more than 20 projects,

Joins the company since May, 2010, participated in more than 20 special cases,

Since 2010, joining the company, and may participate in more than 20 ad hoc,

Since May 2010, joined the company, took over more than 20 projects,