Definition
This idiom describes a sequence of events where each event is a direct consequence of the one before it, often unfolding naturally.
一连串发生，环环相扣。
I only meant to take a quick look at the website, but one thing led to another, and I ended up spending hours on it.
我本来只是想快速浏览一下网站，但事情接二连三地发生，最后我花了几个小时在上面。
They started by discussing work at a coffee shop, but one thing led to another, and they began planning to start a business together.
他们一开始在咖啡馆讨论工作，但事情接二连三地发生，最后他们开始计划一起创业。
She only intended to ask a small question, but one thing led to another, and they ended up having a deep philosophical debate.
她本来只想问一个小问题，但事情接二连三地发生，最后他们进行了一场深刻的哲学辩论。