the image of something in a mirror or on any reflective surface

In Greek mythology, Narcissus fell in love with his own reflection in a pool of water. 希腊神话中的那喀索斯爱上了自己在水池中的倒影。

He put silver foil around the fire to increase heat reflection. 他用银箔围住火炉来增加热的反射。

the return of light, heat, sound, or energy from a surface

He put silver foil around the fire to increase heat reflection. 他用银箔围住火炉来增加热的反射。

the angle that a beam of light or other energy that is reflected from a surface makes with a line vertical to that surface

This is only visible at certain angles of reflection.

The angle of incidence is equal to the angle of reflection.

In this equation, 'R' stands for the angle of reflection.

The laser's angle of reflection is 30 degrees.

The angle of reflection refers to the angle of the reflected ray travelling away from the surface and the perpendicular to the surface.

a sign or result of something

The fact that soldiers are on the streets is a reflection of how terrified the government is. 街头部署了士兵，这一情况显示出政府是多么惊恐。

serious and careful thought

On reflection (= after considering it), I decided I had been wrong. 经过审慎的思考，我认定以前是我错了。

After 30 years as a judge, her reflections on/about justice were well worth listening to. 她当了30年法官，所以她对司法制度的意见很值得一听。

something that makes other people have a particular opinion about someone or something, especially a bad opinion

Low test scores are a sad reflection on our school system. 学生考分低，这使我们的学校系统遭受非议。

It's a sobering reflection on our society that there are so many people willing to prey on people's vulnerability.

It's a worrying reflection on the world we live in where people like these are considered to be suitable leaders.

That decent people are treated in this way is a sad reflection on the times we live in.

Her nasty response during the interview was a revealing reflection on the potential liabilities of hiring her.