Primecost variance
[经] 主要成本差异
🧩 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
He says it always brought him good luck on the baseball team.
他说 ，当年他在棒球队时这手套总是带给他好运。
There was a big crowd and we had difficulty getting a taxi.
外面有一大群人并我们有很困难招一辆出租车。
It has yet to reach its full size and strength,
虽然在这个时期人的身材、体力