催化剂

• 亻(person; human)RADICAL
• 崔(steep mountain; climb)PHONETIC

People urge each other to hurry up like climbing a steep mountain, where you must move your feet quickly to keep pace.

• 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.