折射 (zhé shè): to refract; refraction; to reflect (in the figurative sense: to show the nature of)

When sunlight passes through a prism, it refracts, forming a seven-color spectrum.

When light enters water from air, due to refraction, the chopsticks appear bent.

This lens has a high refractive index, so it can focus light more effectively.

A mirage is a natural phenomenon caused by the refraction of light.

In an eye exam, the doctor uses a refractometer to measure the eye's refractive power.