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.

Let's go to see a movie together.

He is a foreigner, so he finds it difficult to learn about Japanese culture.

That man is my father.

That woman is my mother.