polythene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。
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 a while.
这种聚乙烯塑料应该可以挡一会儿雨.