structural skeleton造句

例句与造句

1. Benzylisoquinoline alkaloids are the major important natural serial alkaloids with diverse structural skeletons
   摘要苄基异喹啉类生物碱是自然界中很重要的一类生物碱，数量多，结构类型复杂。
2. It's difficult to find structural skeleton in a sentence. 用structural skeleton造句挺难的