a weak smile的用法和样例：
- "Good-night,Mr. Mason," she said with a weak smile.
- He said as he flashed them a weak smile.
- "Thank you, Nan," she said with a weak smile.
- The man's eyes clouded slightly and he cracked a weak smile.
- Poor Bill managed a weak smile and bobbed his head around a little.
a weak smile的相关资料：