例句與造句

1. There is a steep curve of learning,
2. "We've been on a steep curve of learning, " said Rima Khabbaz, the Centers for Disease Control official who has been overseeing the Washington investigation.
3. The CDC's Dr . Rima Khabbaz, an infectious disease specialist, said the agency was " on a steep curve of learning " and was re-evaluating its response.
4. It's difficult to find curve of learning in a sentence. 用curve of learning造句挺難的