一唱一和的英文：
[Literal Meaning]
one/sing/one/accompany
to sing a duet with somebody

[解释]
和：附和。比喻两人相互配合，互相呼应。

[Explanation]
to echo and support each other

[例子]
这对夫妇一唱一和，编造了各种谎言来欺骗警察。

[Example]
The couple echoed each other and fabricated all sorts of lies to deceive the police.