brighter , brightest
A bright colour is strong and noticeable, and not dark.
a bright red dress.
一条亮红色的连衣裙。
A bright light, object, or place is shining strongly or is full of light.
a bright October day.
一个明媚的10月天。
If you describe someone as bright, you mean that they are quick at learning things.
clever
I was convinced that he was brighter than average.
我确信他比一般人聪明。
A bright idea is clever and original.
There are lots of books crammed with bright ideas.
有很多书都充满了巧妙新颖的点子。
If the future is bright, it is likely to be pleasant or successful.
Both had successful careers and the future looked bright.
两人都有过成功的事业,前途看上去很光明。