●up to ˈspeed (on sth) () (about a person, company, etc.) performing at the rate or level that is expected（人、公司等）达到应有的速度，达标◆She aims to get new employees up to speed as quickly as possible.她的目标是尽快将新员工培训合格。having the most recent and accurate information or knowledge了解最新情况；跟上形势◆Are you up to speed yet on the latest developments?你对最新进展情况了解吗？