Here are several sentences using "pleasant" in different contexts:
We had a pleasant conversation over coffee this morning.
The hotel room had a pleasant view of the mountains.
It was a pleasant surprise to run into an old friend at the grocery store.
The weather was quite pleasant for our outdoor picnic.
He always greets his customers with a pleasant smile.
Their new neighbor seems very pleasant and friendly.
After a long day of work, it was pleasant to relax in the garden.
Here are several sentences using the word "energy" in different contexts:
After drinking coffee, I felt a sudden burst of energy.
The government is investing in renewable energy sources.
The gym class left the children with little energy for homework.
Meditation can help balance your mental and physical energy.
Scientists are exploring new ways to store energy efficiently.
Here are several sentences using the word "system" in different contexts:
We need to upgrade our computer system to improve efficiency.
The company implemented a new filing system to organize documents.
The immune system protects the body against diseases.
The public transportation system in this city is quite reliable.
