“a sheet of”例句

单词 a sheet of 例句 DEFINITIVE EXAMPLES 权威例句〔-topped〕I have overcome this problem by placing a sheet of polythene over the top of the container.我在容器上盖了一片聚乙烯塑料薄膜，解决了这个问题。柯林斯高阶〔DRAW〕Simon was lying on the floor, doodl...