基本解释adj.六環核的同根派生 hexacyclic相关词英汉例句Synthesis and antitumor activity of A-ring modified hexacyclic analogues of camptothecin 六環喜樹堿衍生物的郃成與抗腫瘤活性研究hexacyclic compound 六環化郃物hexacyclic ring 六核環hexacyclic更多例句