| 单词 | perforating |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔perforation〕The act of perforating.穿孔：穿孔的行动美国传统〔pounce〕To ornament (metal, for example) by perforating from the back with a pointed implement.从背面刺穿：用尖利的工具从背后穿孔以装饰（如金属）美国传统〔puncheon〕A punching, perforating, or stamping tool, especially one used by a goldsmith.尤指金匠用的凿孔器美国传统 |
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