He likes to develop film by himself.

One part is important.

I turned off the power of the laptop.

He likes to learn Hangul.

It's difficult to understand this text.

What does this wording mean?

He was angry like a field set ablaze.

For my health, I started reducing the amount of my daily meals.

He decided to decrease the amount of his meals for his health.

The atomic weight of helium is 4.