我能听到他转动门把手时发出的咔哒声。

I could hear the ___clicks as he turned the doorknob.

当我看到这个数学题的解法时，突然豁然开朗。

When I saw the solution to this math problem, everything ___clicked in my mind.

只需三下点击，你就可以完成支付。

With just three ___clicks, you can complete the payment.

他们第一次见面就聊得很投缘。

They ___clicked right away when they first met.