购物广场

• 貝(shell; currency)RADICAL
• 冓(structure; join together)PHONETIC

Using money (shell) to connect buyers and sellers together is what shopping means.

• 广(roof; shelter against cliff)ASSOCIATIVE

A roof leaning against a cliff provides shelter from rain and sun for people inside.

• 土(earth; soil; land)RADICAL
• 勿(don't; must not)PHONETIC

A wide field of land sounds similar to the word for things or objects.