1. in unison : 和谐, 一致, 一齐；
名词
1. 同时；一起
If two or more people do something in unison, they do it together at the same time.
2. 和谐地;一致地
If people or organizations act in unison, they act the same way because they agree with each other or because they want to achieve the same aims.
1. (music) two or more sounds or tones at the same pitch or in octaves
e.g. singing in unison
2. occurring together or simultaneously
e.g. the two spoke in unison
3. corresponding exactly
e.g. marching in unison