be firm of purpose

• 意志坚强； 有决断力

be firm of purpose的用法和样例：

例句

1. He has enormous confidence and strength of purpose.
   他信心十足，意志坚强。
2. She is really a girl of strong will.
   她是个意志坚强的姑娘。
3. Mr. Smith is a man of determination.
   史密斯先生是个有决断力的人。