庆幸 (qìng xìng): to rejoice; to be glad

Yesterday's heavy rain came suddenly; I felt lucky that I had brought an umbrella when I left home in the morning.

I heard that flight was canceled due to weather; I felt fortunate that I had changed to an earlier one.

He felt lucky that he had listened to his friend's advice and hadn't invested all his money in that company.

After the earthquake, she held her child tightly, feeling relieved that the whole family was safe and sound.

I studied hard before the exam, and now seeing my score, I feel very glad that I put in the effort.