当反应周期结束时，球会掉入洞中，然后我们将得到产物--水。

When the reaction period ends, the ball is inside the hole, and we have our product: water.

性唤起是人类性反应周期的一个重要部分。

Sexual arousal is an important part of the human sexual response cycle.

关键是去缩短你的反应周期。

The key here is to shorten your feedback cycle.

原因何在?答案在于紧张情绪对大脑两个部分之间反应周期的影响有关。

Why? The answer has to do with how nervous feelings influence a response cycle between two parts of your brain.