be absorbed in; be fully occupied with 专心致志于 （短语） ______
举一反三
- （短语）专心致志于
- 专心致志于（短语）______
- Malcolm X would rather be fully occupied with copying a dictionary and reading aloud __________ the time away in prison.
- John was so ______ in his book that he did not hear the doorbell ring. A: engaged B: occupied C: absorbed D: concentrated
- （短语be... in，请写出三个单词的短语）全神贯注于，专心致志于