那一个瞬间，闪光二极管被挡住，计时器开始，那一个瞬间，闪光二极管再次出现，计时器停止。

And the moment that the light - emitting diode is occluded, the timer starts, and the moment that the light - emitting diode emerges again, the timer stops.

youdao

在这瞬间，计时器就会启动，在它击断铁丝ii时，计时器就会停止。

At that moment, the timer starts and then it breaks this wire and that's when the timer stops.

youdao

在这瞬间，计时器就会启动，在它击断铁丝ii时，计时器就会停止。

At that moment, the timer starts and then it breaks this wire and that's when the timer stops.

youdao