Keep good apples in perforated polythene bags.把好苹果放在有孔的聚乙烯袋中保存。Simply put them into a polythene bag and store them in the freezer for a day.只需把它们装进保鲜袋，在冰箱里储存一天即可。This polythene sheet should serve to keep out the rain for...
...polythene bags stapled to an illustrated card.订在一张插图卡片上的几个塑料袋Keep good apples in perforated polythene bags.把好苹果放在有孔的聚乙烯袋中保存。This polythene sheet should serve to keep out the rain for a while.这种聚乙烯塑料应该可以挡一会儿雨.Enclose t...