The events of that day still remain in my heart even now.

You need to be mentally prepared before the exam.

His heart was a symbol of his love.

In order to calculate the centroid of this shape, you need to know the area of each part and the position of its centroid.

I'm excited to hear that a new project is starting.

He always has a high sense of alertness.

He has a strong ambition and is always seeking self-improvement.

He has a deep interest in astronomy.

The weather today is very good.

He is conducting research on celestial bodies.