环保科学

• 王(jade)RADICAL
• 不(empty; void; sky)PHONETIC

A ring made from precious jade has a circular shape with no beginning or end.

• 亻(person; human; man)RADICAL
• 呆(naive; dazed)PHONETIC

A person standing beside protecting and sheltering the innocent and weak.

• 禾(rice plant)RADICAL
• 斗(threshing floor; rice threshing area)ASSOCIATIVE

To classify rice grain by measuring each type with a measuring vessel.

• ⺍(two hands (indicating learning))ASSOCIATIVE
• 冖(roof; house)ASSOCIATIVE
• 子(child)RADICAL

A child sitting under a roof with two hands diligently studying represents learning.