| 单词 | touchstone |
|---|---|
| 音标 | ['tʌtʃstəun] |
| 解释 | n. 试金石；检验标准 |
| 红宝书 | 【英】 n.试金石(stone used to test the fineness of gold alloys);检验标准(criterion; standard) |
| 字源 | touchstone (n.) late 15c., from touch (v.) in the Middle English sense "to test" (metal) + stone (n.). Fine-grained black quartz, used for testing the quality of gold and silver alloys by the color of the streak made by rubbing them on it. Also see basalt. Figurative sense is from 1530s. |
| 不择手段背单词 | 无 |
| 趣味全助记 | 【记】touch stone 在石头上划几道,试金子成色的石头, |
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