Physical variance
[经] 效率差异, 实际差异
🧩 词语组成解析
variance
['vɛəriəns]
n. 变化，变动;不一致;分歧;<数>方差;
🗣️ 情景例句
A professional writer?
职业写作人员？
Do now waste them, but use them while they are fresh.
不要浪费了这些，要趁未落伍时善加利用。
I went further back into the cave and stopped still.
我向前走拐进岩洞，停住不动。