单词
subtraction
读音
səbˈtrækʃn
美式
英式
词根
"Subtraction"的词根是"-tract-"，这个词根意为"pull"或者"drag"（拉，拖）。其他的单词如"attract"（吸引），"distract"（分散），"extract"（提取）等，都包含这个词根。
释义
n. [数] 减法；减少；差集 [ 复数 subtractions ]
例句
She's ready to learn simple addition and subtraction.
她准备学习简单的加法和减法。
There will be simple tests in addition, subtraction, multiplication, and division.
将会有加减乘除的简单测试。
We can use the magic of subtraction.
我们可以利用减法的魔力。
She's ready to learn simple addition and subtraction.
她准备学习简单的加法和减法。
There will be simple tests in addition, subtraction, multiplication, and division.
将会有加减乘除的简单测试。
We can use the magic of subtraction.
我们可以利用减法的魔力。
强化记忆
你可以将"subtraction"的词义——“减法”与其词根"-tract-"（拉，拖）联系起来，想象一下，你正在从一堆东西里“拖”出一些东西，剩下的就是减去之后的结果，这样也许能帮你更好地记住这个单词。“Subtraction”一词源于拉丁语的“subtractionem”，原义为“取走，移走”，用于数学概念是在16世纪开始的。
看视频学发音
Addition,and Subtraction.But each was known best by his or her mark:
and protected Exponents, Multiplication, Division,Addition, and Subtractionwhile they diced and sliced.
The CPU could do the four fundamental functions of arithmetic --so addition, multiplication, subtraction, division --which already is a bit of a feat in metal,
These dwellings are called the yaodongs.Through this architecture by subtraction,these yaodongs are built literally inside of the soil.
Then, it was Multiplication, Division,Addition, and Subtraction, each in turn,always the same order.
所属分类
程序员,其他
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