a grim smile的用法和样例：
- She looked at me with a grim smile.
- The thought of it caused a grim smile to appear and joy to his heart.
- We had a grim struggle before we won.
- She held on with a grim determination not to cry.
- A grim and unsightly picture met his eye.
- He himself had changed into a grim old dog.
a grim smile的相关资料：