地下情

• 土(earth; soil; land)RADICAL
• 也(also; punctuation mark (archaic))PHONETIC

The wide earth (soil) is also where all things flourish and grow.

• 一(horizontal line; boundary)RADICAL
• 卜(stroke descending downward)ASSOCIATIVE

A vertical stroke pointing downward across a boundary line marks 'below'.

• 忄(heart; emotion)RADICAL
• 青(blue-green; pure; clear)PHONO-SEMANTIC

Pure emotion like clear blue sky comes from the heart.