除草剂

• 阝(earthen mound; village wall; rampart)RADICAL
• 余(surplus; remainder)PHONO-SEMANTIC

Remove the excess remainder along the city wall's edge, like clearing away an earthen mound.

• 艹(grass; herb)RADICAL
• 早(early; morning)PHONETIC

Grass grows abundantly in the early morning dew across the fields.

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

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