自存的

例句：

1. 1. We need to keep the books in a safe place.
   我们需要把书放在安全的地方。
2. 2. The old house is filled with treasures that were carefully preserved.
   这座老房子充满了被精心保存的宝藏。
3. 3. The scientist stored the samples in a secure vault.
   科学家将样本储存在安全的保险库里。