I am preserving food in a vacuum pack.

Tyrosine is one of the important amino acids.

This newly released smartphone is equipped with the latest technology.

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

Please check my outbox.

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.