nightmare

Mơ dữ / Mộng quỷ

a frightening dream, especially one that you remember when you wake up

• have a nightmare

Collocations nightmare about something · a recurring nightmare

• I had a nightmare last night.

  Tôi đã mơ dữ vào đêm qua.

Rắc rối lớn / Khó khăn nan giải

a situation that is very difficult or unpleasant and seems impossible to deal with

• have a nightmare (of something)

Collocations nightmare situation · a bureaucratic nightmare

• Dealing with the tax office is a real nightmare.

  Đối phó với cơ quan thuế là một rắc rối lớn.