| 词组 |
have sth at your fingertips |
| 释义 |
●have sth at your ˈfingertipsbe so familiar with a subject that you can produce any facts about it easily and quickly 对…了如指掌;精通某事◆The director was well prepared for the interview. She had all the facts at her fingertips. 经理为这次采访作了充分的准备,她对所有的事实了如指掌。 |

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