be made of句子中的made是make過去式
made of 通常用被動語態，由……組成，沒有原形，mαde 的原形是make
例:
That chiffonier is made of oak.
那件小衣櫥是橡木製成。
This salad is made of apple， pear， potato and celery.
這份色拉是由蘋果、梨、土豆和芹菜做成的。
Many items in daily use are made of plastic.
很多日常生活用品是用塑料製成的。
Bread is chiefly made of flour.
麪包主要是由麪粉做成的。
These appliances are made of stainless iron.
這些器具是用不鏽鋼製成的。
The fence was made of posts joined together with wire.
籬笆是以鐵絲連接起木樁而構成的。
Candles are made of paraffin wax.
蠟燭是由石蠟做成的。
In hot weather cloths made of a porous material like cotton are best.
熱天穿棉布之類有滲透性的材料製成的衣服最為適宜
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