preservation of organs for grafting

例句：

1. 1. The government has implemented strict measures to preserve the environment.
   政府已经实施了严格的措施来保护环境。
2. 2. The preservation of 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's efforts in preserving historical artifacts have been well-received by the public.
   博物馆在保存历史文物方面的努力受到了公众的广泛欢迎。