背地的

例句：

1. 1. They kept their secret from everyone except for a few trusted friends.
   他们除了几个信任的朋友之外，没有告诉任何人他们的计划。
2. 2. The book was written in the back of the drawer where she keeps her diaries.
   这本书是放在她用来存放日记的抽屉后面的。
3. 3. She always prefers to keep her problems to herself rather than sharing them with others.
   她总是倾向于把问题藏在心里，而不是和其他人分享。