例句與造句

1. There are no identified related forms, although there is some vague resemblance to other Ediacaran forms such as " Dickinsonia " and " Spriggina " that share some of its enigmatic characteristics, such as the " staggered " or glide symmetry of its units, or triradial symmetry otherwise only seen in trilobozoans like " Tribrachidium " . " Pteridinium " has no known descendants.
2. It's difficult to find glide symmetry in a sentence. 用glide symmetry造句挺難的