The idiom '了若指掌' means to know something or a situation extremely well, as if it were at one's fingertips.
成语“了若指掌”比喻对某事或情况非常了解和清楚。
| 成语 | 了若指掌 |
|---|---|
| 解释 | 比喻对情况十分明白清楚 |
| 出处 | 《宋史·道学传序》：“作《太极图说》、《通书》，推明阴阳五行之理，命于天而性于人者，了若指掌。” |
| 拼音 | liǎo ruò zhǐ zhǎng |
| 拼音码 | lrzz |
| 近义词 | 了如指掌 |
| 用法 | 偏正式；作谓语；指十分清楚 |
Tags: freq3
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