up to speedhaving the latest information or knowledge about something 跟上形势，了解最新情况 Some school officials are only now getting up to speed regarding computers. 有些学校官员在计算机方面现在才刚刚跟上形势。
John will bring you up to speed (=tell you the latest information). 约翰将会为你介绍最新情况。
bring ... up to speed• It took the company a year to bring them up to speed.• To bring consumers up to speed, telephone companies are revving up education campaigns.
→ up to speed at speed1(2)