commutative什么意思解释

commutative的音标：commutative的英式发音音标为：[kə'mju:tətɪv]commutative的美式发音音标为：['kɑmjəˌtetɪv, kə'mjutətɪv]...

The central notion in commutative algebra is that of a prime ideal.交换代数中最核心的概念就是素理想.It'should be clear that vector addition is commutative.可清楚地看0剑0矢量加法满足对易律.The groups of the solvable equations are commutative.可解方程的...

“仿造”的拼音为：fǎng zào...

n.金刚鹦鹉，美国棕榈...

“张量”的拼音为：zhāng liàng...

“安心”的拼音为：ān xīn ...

erepsin的音标：erepsin的英式发音音标为：[ɪ'repsɪn]erepsin的美式发音音标为：[ɪ'repsən]...

digitated的音标：digitated的英式发音音标为：['dɪdʒɪteɪtɪd]digitated的美式发音音标为：['dɪdʒɪteɪtɪd]...

...the Collins bilingual dictionaries.柯林斯双语词典He is bilingual in an Asian language and English.他会说一门亚洲语言和一门英语。...bilingual education.双语教育She works as a bilingual secretary for an insurance company.她为一家保险公司做双语秘书.Bilingual ...

我们往往每周共进一次午餐。We tend to meet up for lunch once a week.银行往往建得看上去很坚固，好让顾客放心。Banks are built to look solid to reassure their customers.较年长的母亲往往对身为人母的乐趣过于理想化。Older mothers tend to be too idealistic about the pleasures of mot...

瘤角...

“差事”的拼音为：chà shì...

他懊悔地坐在靠窗的椅子上。He sat penitently in his chair by the window.鲍勃从椅子上滑下来，趴在了地板上。Bob slid from his chair and lay prone on the floor.阿利斯泰尔看见了坐在椅子里的罗丝的模糊身影。Alistair saw the dim figure of Rose in the chair....

我听到戴维高声喊叫着要他们回来。I heard David yelling and telling them to get back.他们讥讽着，喊叫着，打破了惯常的那一分钟沉默。They interrupted the customary one minute's silence with jeers and shouts.为了一睹英雄的风采，人群喊叫着，推搡着。Crowds shouted and pushed to ge...

银行家们对结果保持高度警惕。Bankers are keeping a wary eye on the outcome.这个年纪不大的孩子为此始终保持警惕。To this end the young child is forever watchful.她警惕地看着我，似乎担心我会动粗。She studied me warily, as if I might turn violent....

depart的一般过去时为：departed...

The bags have adjustable shoulder straps.这些包的肩带可以调整。The height of the bicycle seat is adjustable.这辆自行车车座的高度可以调节。More expensive cameras have adjustable focusing.比较贵的照相机有可调焦距....