词
裂;Sheets of postage stamps are perforated.
一张张的邮票都打过
。
于,在…上打眼〔眼线〕Sheets of postage stamps are perforated.
一张张的邮票都打过。
The insufficiency of perforating veins is the main cause resulting in the recurrence of varicose veins after varicotomy in lower extremities.
交通静脉功能不全是导致下肢静脉曲张术后复发的主要原因。
声明：以上例句、词性分类均由互
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