a run of的用法和样例：
- There has been a run of rainy days since Monday.
- There has been a run of rainy day since Monday.
- This play has had a run of over ten performances.
- The train makes a run of 100 miles in 2 hours.
- The play had a run of three months.
- After a run of bad cards, James decided he had lost enough money and threw in his hand.
a run of的相关资料：