拖地板

• 扌(hand)RADICAL
• 也(also; sentence-final particle)PHONETIC

Using your hand to pull and drag something behind you is called 拖.

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

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

• 木(wood; tree)RADICAL
• 反(flip over; reverse; return)PHONO-SEMANTIC

A wooden board is made by splitting the tree trunk upside down.