a good friend的用法和样例：
- The departed was a good friend of mine.
- We know John Smith as a fine lawyer and a good friend.
- A good friend will not desert one in time of adversity.
- Da Vinci had a good friend named Mona Lisa.
- She is from beginning to end a good friend.
- She was a good friend of six British dukes.
a good friend的相关资料：
a must a a vainglorious display of erudition a first step toward canonization. a consistent pattern of behavior. a republican government/movement A copy of house-owner certificate a-c directional overcurrent relay a constellation of Hollywood talent a seemingly irreconcilable conflict a mischievous grin/smile/look a person suffering from neurosis.