| 词汇 | nitty-gritty |
| 词源 | nitty-gritty. Getting down to the nitty-gritty is getting down to basic elements. Though first recorded in the 1960s the ex- pression is probably older; the nitty-gritty of the phrase may be gritlike nits (small lice) that are difficult to remove from the hair or scalp. |
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