preserve jar

例句：

1. 1. The government is working hard to preserve the environment.
   政府正在努力保护环境。
2. 2.Preserving endangered species is crucial for biodiversity.
   保护濒危物种对于生物多样性至关重要。
3. 3. The museum has a collection of rare artifacts that need to be preserved carefully.
   博物馆有一批珍贵的文物，需要小心保存。