吸附剂

• 口(mouth; opening)RADICAL
• 及(to; toward; with)PHONO-SEMANTIC

A mouth stretching out to breathe is like a hand reaching for something.

• 阝(earthen mound; village; hamlet)RADICAL
• 付(hand over; deliver)PHONETIC

Attaching something to a place is like handing an object to the neighboring village next door.

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

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