- Someone stole into his room in the still of night.
- No one saw her slip into the lab.
- He huddled on his robe and ran into the room to answer the telephone.
- You mustn't let yourself get into a rut.
- He had relapsed into silence again.
- He jammed all his clothes into a small suitcase.
- Don't force your foot into the shoe.
- slip something into someone's hand 悄悄把某物塞到某人手...