cost of raw materials的用法和樣例：
例句
- Another potential risk to Chinese and other auto-parts makers is an unanticipated rebound in the cost of steel or other key raw materials.
中國和其它國家零部件製造商面臨的另一個潛在風險是鋼鐵或其他主要原材料成本出乎預料地回升。 - Due to declining sales and rising raw material costs, profit margins have been squeezed.
由於銷量下降和原材料成本的上漲，利潤率也受到了擠壓。
