Without a power bank, it's difficult to go out for a long time.

This problem is very difficult.

He was working on the computer for a long time.

The battery of my smartphone runs out quickly.

My new mobile game is very interesting.

Since the weather is good today, I'm thinking of going out.

Since the weather is good today, I'm thinking of going out.

The government issued a curfew to prevent the spread of the new coronavirus.

The mayor issued a curfew at night due to an emergency.