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

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

He always has a high sense of alertness.

Could you please tell me how to calculate the excenter of this triangle?

He collapsed from cardiac arrest.

I saw a masked palm civet in the park.

He turned over a new leaf and quit his bad habits.

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

He has a deep loyalty to his country.

He was grieved at heart when he heard the news.