in tandem doing something together or at the same time as someone or something else协同工作，联合工作:•The two companies often work in tandem.两家公司经常合作。[+ with ]•The group operated in tandem with local criminals.该团体和当地的犯罪分子勾结在一起。 in tandem alongside each other 协同地。 ■ one behind another 一前一后地。 |