阳光拐个弯我的天空暗了
[yáng guāng guăi gè wān wŏ de tiān kōng àn le]
The sky turned dark for me when sunshine turned the corner. When you're expecting good things or joy (the sunshine), they didn't continue but instead left, making everything feel dark for the user. It shows sadness over changes, especially unwanted ones where expectations are not fulfilled.