subtraction 

11052
CET4CET6TOEFL
单词释义
n.扣除,减法
词根词缀记忆/谐音联想记忆 补充/纠错
词根sub下 + tract拉,向下拉 + ti …………
其他怎么记补充/纠错
对比记忆traction结尾的单词
traction 牵引力
abstraction → ab表远 …………
词性拓展记忆 / 词形拓展记忆
原形:subtraction复数:subtractions
对比记忆 / 类比记忆 / 形近词记忆
单词例句
He is also terrible at subtraction.
他的减法也很差。
They learn subtraction in grade one.
他们在一年级学减法。
They do addition and subtraction in arithmetic.
在算术里,他们作加减运算。
The size of the new United Family Hospital in Hongqiao is more than three times that of its previous one, and it is equipped with advanced magnetic resonance imaging system and digital subtraction angiography, which are rarely seen in private medical institutions in Shanghai, according to the hospital.
A digital subtraction angiography cath lab was established in the Baicheng municipal hospital of northeastern Jilin province earlier in May, which shed light on China's primary hospitals that are struggling with interventional therapies due to financial, technical and operational difficulties.
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