氧化剂

• 气(air; vapor)RADICAL
• 羊(goat)PHONETIC

Gas with a tone like 'dương' is oxygen—the gas that sustains all living things.

• 亻(person; human)RADICAL
• 匕(spoon; compare)PHONETIC

A person standing upright beside a person bending down shows how shapes transform and change.

• 齐(even; orderly)PHONO-SEMANTIC
• 刂(knife radical)RADICAL

Using a knife to cut evenly creates the proper dose of medicine.