unexplained gastrointestinal bleeding造句

例句与造句

1. It is a common cause of otherwise unexplained gastrointestinal bleeding and anemia.
2. One patient described how she felt better after she finally got the answers to her questions about unexplained gastrointestinal bleeding.
3. It's difficult to find unexplained gastrointestinal bleeding in a sentence. 用unexplained gastrointestinal bleeding造句挺难的