We do addition and subtraction in arithmetic.

Addition, subtraction, multiplication, and division are binary operations.

加 、 减 、 乘 、 除都是二元运算.

The simple arithmetic operations are addition, subtraction, multiplication, and division.

简单的算术运算是加法 、 减法 、 乘法和除法.

And the circuit for moving eyes left does mental subtraction.

而控制眼球左转的脑回路同时也负责心算减法.

An approach to speech-sound enhancement is proposed based on the spectral subtraction.

摘要提出了一种基于谱减法的语音增强算法.

Students who cannot even do simple addition and subtraction.

学生甚至不会做简单的加法和减法.

Typical operations are addition, subtraction, multiplication, division, and square root.

典型的操作是加 、 减 、 乘 、 除和平方根的计算.

Mum: Have you learned addition , subtraction, multiplication , and division, Lucy?

妈妈: 露西,你学了加减乘除了 吗 ?

They made a subtraction of 50 dollars from my salary.

他们从我的薪水里扣除了五十美元.

For a whole day they searched after the lost child.

这个走失的孩子他们找了一整天.

We searched here and there, but could not find her.

我们到处找她, 但还是找不到.

We have searched out all the facts we need.

我们已经弄清了我们所需要的全部事实真相.

I have searched my mind for a reason, but can't find one.

我绞尽脑汁寻找理由, 但是没找到.

Nigel has searched for work in a ten-mile radius around his home.

奈杰尔一直在他家周围10英里的范围内找工作。

We searched until we knew it would be pointless to continue.

我们搜索又搜索，直到觉得继续下去也枉然时才罢手。

We searched in all quarters but still couldn't find it.

我们到处寻找,但仍没能找到.

After he felt better, he searched for work at the various mills.

他感到好些后, 就在各工厂找工作.

She searched her desk for the necessary information.

她在她的书桌上搜寻必要的信息。

Toddlers whose mothers had taken valproate IQs of 92, on average.

这些母亲服用抗癫痫药的小孩智商平均是92.

As a first-line agent for treating epilepsy, valproate sodium is widely used in clinic.

丙戊酸钠作为常用一线抗癫痫药, 目前在临床的应用较为广泛.

The authors also found a dose-dependent relationship between valproate and IQ score.

作者也发现丙戊酸钠和IQ值之间的剂量依赖性关系.