There is a Cantonese song sung by all girls, not "You Know", but the first sentence of the climax is "I am happy in Cantonese."

It should be a cover of Ka Kui's "Like You"

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Sincerely answer every question for you!

If you are satisfied, please adopt the best! If in doubt, please continue to ask questions!

Your praise is the driving force for us to move forward, learn from each other and make progress together!