a fit of coughing的用法和样例：
- He burst a blood-vessel in a fit of coughing.
- A fit of coughing could be heard from the inner room.
- The speaker broke off in the middle of a sentence with a fit of coughing.
- He had a fit of coughing.
- Just then Keshab was seized with a fit of coughing, which lasted for a long time.