这个夏天我没有西瓜
[zhè gè xià tiān wŏ méi yŏu xī guā]
Translates to 'I don't have watermelon this summer'. Watermelons symbolize refreshment and pleasure during hot weather. By saying 'I don’t have watermelon' metaphorically indicates lack of enjoyment, happiness or fulfillment in that particular season.