Essential amino acids, which the human body cannot produce on its own, need to be obtained from the diet.

I am a member of the Third International.

Hydrocyanic acid is a very dangerous chemical.

As soon as he arrived, he said 'I just got here.'

He drew an equilateral triangle shape.

He finally passed the exam, proving that the third time's a charm.

Please calculate the area of this right triangle.

This ring is made of alexandrite.

Her misandry makes her relationship with men difficult.

He damaged his peroneus tertius muscle due to a foot injury.