我在你看不见的地方诅咒你
[wŏ zài nĭ kàn bù jiàn de dì fāng zŭ zhòu nĭ]
Meaning 'I curse you in places you can't see'. It has dark tones, suggesting secret hostility and wishing bad will towards another person when they're out of view. It indicates a hidden resentment or grudge against somebody perceived to have hurt them or let them down, and they are doing some kind of harm against the subject indirectly.