button coral造句

例句与造句

1. Her doctoral research concerned certain species of deep-sea button corals, a group of stony corals that are distinctive in that they do not form colonies.
2. Now publishing as Joan Murrell Owens, she continued to classify and study button corals, working with specimens from the Smithsonian Institution that were collected by a British expedition in 1880.
3. It's difficult to find button coral in a sentence. 用button coral造句挺难的