soap bark造句

例句与造句

1. The latest effort involves a genetically engineered vaccine derived from the South American soap bark tree, Chinese hampster ovaries and a bacteria called S . minnesota.
2. Called adjuvants, these stimulants are derived from the soap bark tree-- a common South American plant now used to make root beer and photoprocessing chemicals-- and a bacteria called S . minnesota.
3. It's difficult to find soap bark in a sentence. 用soap bark造句挺难的