alicyclic

例句：

1. 1. This compound is alicyclic, meaning it has a cyclic structure.
   这种化合物是循环的，意味着它有一个环状结构。
2. 2. Alicyclic compounds are often found in nature and play important roles in biological processes.
   循环化合物通常存在于自然界中，并在生物过程中发挥重要作用。
3. 3. The study of alicyclic compounds is crucial for understanding the behavior of molecules in living systems.
   研究循环化合物对于理解分子在活体系统中的行为至关重要。