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touchstone

英 ['t?t?st??n] 美['t?t?'ston]
  • n. 試金石；（檢驗(yàn)）標(biāo)準(zhǔn)
  • n. (Touchstone)人名；(英)塔奇斯通

英英釋意

1. a basis for comparison; a reference point against which other things can be evaluated;
"they set the measure for all subsequent work"