sub-,在下，向下，-tract,拉，词源同 attract,contract.引申数学名词减，减去。

1. Please subtract a quarter of the money for your own use.

请从你的零用钱中扣除四分之一.

来自《简明英汉词典》

2. Subtract four from nine and you have five.

九减四得五.

来自《现代汉英综合大词典》

3. In their first year at school, most children learn to add and subtract.

入学第一年, 多数孩子都学加减法.

来自《简明英汉词典》

4. When you subtract two numbers, you subtract a subtrahend from a minuend.

当你作两个数的减法时, 你用一个被减数去减另一个减数.

来自辞典例句

5. The little girl has begun to learn to add and subtract.

这小女孩已在学做加减法了.

来自辞典例句

[ subtract 造句 ]