a sharp temper的用法和样例：
- When, in addition, a sharp temper was manifested, and to the process of shouldering him out of his authority was added a rousing intellectual kick, such as a sneer or a cynical laugh, he was unable to keep his temper.
- You need a sharp knife to cut through the knot.
- I cut my finger on a sharp stone.
- A sharp knife makes a clean cut.
- She gave a sharp cry of surprise.