material的縮寫爲mater
例句
1、
All the materials used were of the highest grade.
使用的材料全是優質品。
2、
The materials used have to be able to withstand high temperatures.
所使用的材料必須能夠耐高溫。
3、
All the materials are on site so that work can start immediately.
所有材料都已運抵工地，可以立即開工。
