Welcome guests from all over the world. Ask for rhyme.

Part I: Welcome guests from all over the world.

Bottom line: Smile at all the guests? Don't judge by appearances.

Horizontal batch: feel at home.

Note: The antithetical couplets emphasize that the antithesis is flat and even, flat and even, and the tone is cadence. If you pursue rhyme blindly, it will become a jingle. For example:

Part I: Welcome guests from all over the world.

Part 2: Laughing and singing songs from all over the world? Right, right.

Although it conforms to the rules, it is awkward and pretentious to read.