hard time

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a difficulty that can be overcome with effort (Freq. 1)
- we had a hard time getting here
- analysts predicted rough sledding for handset makers
• Syn:
rough sledding
• Hypernyms:
difficulty
2. a term served in a maximum security prison
• Hypernyms:
prison term, sentence, time