趣英语 / perforated例句

perforated例句

Keep good apples in perforated polythene bags.
把好苹果放在有孔的聚乙烯袋中保存。

The ulcer has perforated.
溃疡已穿孔.

Sheets of postage stamps are perforated.
一张张的邮票都打过接缝孔.

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