In unison:
Acting or speaking together, or at the same time.
“In unison” 是一个实用的短语，用来形容人们在行动、说话或表演时 “步调一致，十分协调”。比如：可以用 “in unison” 形容两个人或一群人 “同时地” 做某事，或 “和谐地” 演唱或演奏。
例句
The concert was amazing. The two soloists and the choir sang beautifully in unison throughout.
这场音乐会非常精彩。两位独奏者和唱诗班的齐唱搭配自始至终都很和谐动听。
The twins are never in unison. They might be identical, but they think very differently!
这对双胞胎从不合拍。他们可能长相一样，但想法却非常不同！
The board voted in unison to appoint the new CEO.
董事会一致投票任命了新的首席执行官。
