| 单词 | trial impression |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔proof〕A trial impression of a plate, stone, or block taken at any of various stages in engraving.毛胚：盘子、石头或岩石在雕刻的各个阶段时的试验印迹美国传统〔proof〕To make a trial impression of (printed or engraved matter).印…的校样：做（印刷或雕刻物）的试用印张美国传统 |
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