英语作文
Last Saturday we visited a hope school. It was a great way to know some other children's life. We had a party with the students there. We also helped them clean up their classrooms. The head teacher toldus some stories about some hardworking students who are from very poor families. And in order to raisemoney for them, we held a big sale in our school playground the next day. We raised a lot of money. I think being a volunteer is really great and I would like to help more people.希望采纳！
matrix什么意思
Matrix的本意是子宫、母体、孕育生命的地方，同时，在数学名词中，矩阵用来表示统计数据等方面的各种有关联的数据。基本释义：名词：1、母体；基础。2、子宫。3、线粒体基质。4、基质；脉石。5、字模；纸型。6、（唱片的）原版。7、矩阵。8、【音译】梅志克斯（matrix复数：matrices)。英语定义：A matrix is a rectangular array of numbers.Martrices can be used in all sorts of circumstances,for example prsenting information,solving equations and producing transformations o fvectors. 这个定义很好地解释了Matrix代码制造世界的数学逻辑基础。数学上，矩阵的定义见矩阵。双语例句： 1、Let A be a square matrix of order n. 假设A代表n次方阵。2、The matrix of gravel paths is hoed regularly. 砂石路面的碎料被定期翻整。 3、Oxbridge was the matrix of the ideology. 牛津和剑桥是思想意识的发源地。 4、The cold upsetting matrix ' s life is relatively short in this way. 使用该方法冷镦凹模寿命低。5、The influence of matrix elements on the degree of analyte ionization is insignificant. 基体元素及操作条件对电离度影响很小。6、A very efficient and accurate T - matrix method is applied for analysis. 采用的是有效而精确的T - 矩阵方法。7、The reducibility of affine hyperplane arrangements is discussed by using the matrix method. 用矩阵方法讨论仿射超平面构形的可约性。
英语作文
Dear Li Ming;
I've learned from the Internet that you are looking for a foreign friend from an English-speaking country to help you improve English.
I'm Henry from Toronto in Canada, which is beautiful harbor city, It's clean and a big international city, I get your name from the Internet, you want to improve your English, I am a native people, you could come to Canada to get to know the culture of my country , it will be the most quick way to learn English. Among native English-speaking country, you have to use English, for a summer holiday, you can improve your Enlish promptly.
I sincerely invite you to my city, for your better improving of your English, at the same time, we could become friends of each other, and we could contact each other.
Sincerle for you reply
Best Regards
Henry
