红联英语单词
up-sum
up-sum什么意思,up-sum翻译
例句
In this game, these cards are hiding the two parts of an adding-up sum (also called an addition sum).
在这个游戏中,这些卡片分开隐藏了加法式的两个部分。
In this game, these cards are hiding the two parts of an adding-up sum (also called an addition sum).
在这个游戏中,这些卡片分开隐藏了加法式的两个部分。