That person is my friend.

It is said that early to bed and early to rise is good for health.

It is important for each person to fulfill their role.

Have you checked the timetable for the new semester?

In trigonometry, it is important to calculate the value of the cosecant.

Calculating the value of secant, one of the trigonometric functions, is difficult.

The skeleton shrimp is clinging to the rocks on the seafloor and living.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.