sense
1.关于common sense，参见common 2和3
2.下面两句里的come to his senses意思不同：
- She has been behaving very foolishly, I hope she'll soon come to her senses（恢复理智）.
- She has been struck on the head by a rock and has lost consciousness, I hope she'll soon come to her senses（恢复知觉）.
