例句與造句

1. Although he and Irwin had great difficulty extracting the core sample, he felt it was worthwhile.
2. Her voice seems to penetrate each word of the familiar lyrics, extracting the core meaning ".
3. The speech recognition systems are possible because they work within narrow contexts like airline reservations or mortgage rates, restricting the size of vocabulary and extracting the core meaning from a person's natural answer to a specific question.
4. It's difficult to find extracting the core in a sentence. 用extracting the core造句挺難的