催化作用

• 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.

• 亻(person; people)RADICAL
• 乍(sudden; just beginning)PHONO-SEMANTIC

A person beginning to do something is the action of making or creating.

• 用(use; utilize)ASSOCIATIVE

A bucket with a handle is what people pick up and use every day.