明るい気分になる。の英語

Feel light at heart; feel happy.

It's very bright.

It's really bright.

the state of being filled with brightness

I am cheerful.

I am bright and cheerful.

to establish one's innocence―clear oneself （of the charge）―Vindicate one's character

clear and bright

being faintly lit

become light

It grows light.

cheerful and lively

to become cheerful

It grows light.

faintly lit

the condition of being dimly-lit

It's getting light.

cheerful and bright

the degree of clarity and brightness

It's getting light.

of a condition, bright

color lightly

Can we get there before dark?

His face cleared.

It is growing light.

for something to stand out vividly

That lights it up brightly.

Things are looking up.

smile brightly

He is in the line―in the trade―in the business―versed in the subject.