Material variances
[经] 原材料用量差异
🧩 词语组成解析
material
[mə'tɪrɪəl]
n. 材料，原料;素材;布，织物;适当人选;
adj. 物质的;肉体的;重要的，决定性的;辩证的，推论的;
n. 变化( variance的复数形式 ); 不和; 差异; <数>方差
🗣️ 情景例句
The Post Office aims to improve its quality of service.
邮局锐意改善服务质量。
He could always come up with a reason for them to linger another month.
他总能想出个理由来让他们再耽误上一个月。
Experiments have proved that children can be instructed in swimming at a very early age.
实验证明，儿童在很小的时候就可以开始学习游泳。