1, "market": willing to be a pommel horse, where "market" is a verb meaning "buy"; Buy horses in the East Market, where "market" is a noun, meaning "market".
2. Post: I saw the military post last night. The "post" here is a noun, which refers to the military proclamation; The mirror post is yellow, and the "post" here means "paste", which is a verb and means "paste"
3. "Machine": I didn't smell the sound of the loom. The "machine" here refers to the loom; Wan Li went to Rongji, and the word "Ji" here refers to war.