Materials quantity variance
[经] 材料数量差异
🧩 词语组成解析
materials
[[mə'tiəriəlz]]
n. 材料；材料费；材料科学；材质（material的复数）
variance
['vɛəriəns]
n. 变化，变动;不一致;分歧;<数>方差;
🗣️ 情景例句
Exploring outer space is a challenge to mankind.
探索外层空间是一项向人类发出的挑战。
Too swift arrives as tardy as too slow.
欲速则不达。
But it's true. I was the only person in my office who was invited. I've written to accept the invitation.
可这是真的。我们办公室只有我受到邀请。我已经写信表示接受邀请了。