1.I felt a gloomy foreboding that something was going to go wrong.

1.我有一种不祥的预感，总觉得。

2.The sinister atmosphere of the place left an indelible imprint on my memory.

2.此处不祥的氛在我的记忆中不可磨灭的印记。

3.The unusually heavy rainfall was an ill omen for the travellers.

3.异乎寻常的大雨是旅行者的不祥之兆。