例句與造句

1. Expanded polystyrene boards - boards and blocks manufactured from expandable beads - requirements and test methods
   泡沫聚苯乙烯板.可膨脹珠狀材料制板材和塊材.要求和試驗方法
2. It's difficult to find expandable bead in a sentence. 用expandable bead造句挺難的