a heart transplant operation的用法和样例：
- The patient had received a heart transplant.
- She was given a new heart (ie had a heart transplant) in an eight-hour operation.
- Although the surgeon was directly responsible for performing the heart transplant operation, all the theatre staff had a hand is its success.
- He was a pioneer in heart transplant operations.
- His only chance of survival was a heart transplant.
- How do you know she needs a heart transplant?