If you don't look at it as a whole, a word "belt" will be personified, and a bird with a cigarette will "fall" to another place. What are the benefits of this "depravity"? Extremely vulgar. Although the word "lai" is indecent, it is used properly, so I won't say more.
Then read the whole poem. You changed two words like this, doesn't that mean you've changed them all? I almost fell into your trap. I am angry, too! ! !