Dioxin is a part of organic chemistry and is a very toxic compound.

He is a famous psychologist, influencing many people.

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兩唇音 is a type of sound produced using the lips.

He is attending a college preparatory school.

The theory of harmonic oscillators is a fundamental concept in physics.

This rubber is free to expand and contract, and can be changed into any shape.

He overcame hardship and achieved success.

He felt pain within his body.

Our lives have changed significantly due to the new coronavirus.