And then once we find the organisms we're interested in, we turn on a green laser.

而一旦我们找到了想要研究的生物，我们就会打开绿色的镭射光。

A green laser beam stretching almost four kilometers across the city sky will stay lit during the entire festival.

整个节日期间，一束横跨天空近四公里的绿色激光束将保持点亮状态。

And this green laser is actually illuminating a sheet of fluid, and in that fluid, it's reflecting off of particles that are found everywhere in the ocean.

而通过绿色镭射光， 我们可以看见一小片水流被照亮，这一小片水流，会反射出海洋中随处可见的物质颗粒。