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Sheets of postage stamps are perforated.是什么意思？

Sheets of postage stamps are perforated.

一张张的邮票都打过接缝孔.

相关词汇
sheets of postage stamps are perforated

sheets

n. 纸( sheet的名词复数 )，被单，一张（通常指标准尺寸的纸），一大片（覆盖物）；

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

postage

n. 邮费，邮资；

stamps

n. 印( stamp的名词复数 )，邮票，跺脚，标志；

are

vi. （用于第二人称单复数现在时，第一、三人称复数现在时）是；n. 公亩（等于100平方米）；

perforated

v. 穿孔于，在…上打眼( perforate的过去式和过去分词 )，（在纸张等上）打齿孔[孔眼线]；
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