遊說

to lobby / to campaign / to promote (an idea, a product) / (old) to visit various rulers and promote one's political ideas (in the Warring States period)

to walk / to tour / to roam / to travel

to persuade

to speak / to say / to explain / to scold / to tell off / a theory (typically the last character in a compound, as in 日心說|日心说 heliocentric theory)

to speak; to talk; to say / to explain; to comment / to scold; to tell off / (bound form) theory; doctrine

lobby group